Contact lens with peripheral defocus

Abstract

The invention provides a contact lens with peripheral defocus, and relates to the technical field of optical lenses, the lens comprises a contact optimization core area, a partitioned progressive microprism array area and a dynamic light scattering area, and the specific setting is as follows: the contact optimization core area is located at the geometric center of the lens, the outward extension radius is 1.8-2.2 mm, and the contact optimization core area provides clear central vision; according to the intelligent self-adaptive contact lens, the intelligent self-adaptive contact lens is characterized in that the intelligent self-adaptive contact lens comprises a contact optimization core area and a partition progressive microprism array area, the partition progressive microprism array area is located on the outer side of the contact optimization core area and surrounds the contact optimization core area in a concentric ring shape, and through collaborative design of the partition progressive microprism array area and the dynamic light scattering area, the real-time monitoring and dynamic adjusting capacity of a photoelectric feedback control module is combined; the problem that an optical structure of an existing product lacks dynamic adaptability is effectively solved, and the optical structure can be changed according to different illumination environments and wearing duration.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, in particular to a contact lens with peripheral defocus. Background Art

[0002] Myopia rates among children and adolescents worldwide continue to rise, and the problem is particularly severe among Chinese children and adolescents, with the overall rate exceeding 55%. Specifically, the myopia rate among elementary school students is approximately 38%, rising to 73% among junior high school students, and as high as 82% among high school students. Eye-use behaviors such as prolonged focus on study and excessive use of electronic devices have become major contributors to the high incidence of myopia. This process leads to eye fatigue, a gradual decline in the eye's ability to adjust, and persistent spasms of the ciliary muscle, which places excessive pressure on the sclera, causing the eye wall to stretch and the eye's axis to lengthen, ultimately contributing to the development of myopia.

[0003] Experimental and clinical studies have shown that the theory of retinal peripheral defocus plays a key role in myopia prevention and control. Through specific optical designs, such as the use of positive lenses, shifting the imaging plane in front of the retina, creating a myopic defocus state, it can effectively inhibit axial growth and provide a powerful approach to slowing the progression of myopia.

[0004] Currently, the core prevention and control principles of products used in the market for myopia prevention and control, such as peripheral defocus frame glasses, progressive multifocal glasses, orthokeratology lenses, and multifocal soft contact lenses, all rely on retinal peripheral myopic defocus technology. However, these existing solutions have many problems that need to be solved:

[0005] 1. Lack of dynamic adaptability in optical structure: Most products use a single-face or static optical structure design, making it difficult to flexibly adjust to the user's varying lighting environments, changes in wear time, and the real-time state of the eye. For example, when studying in dimly lit environments, the lenses cannot dynamically optimize light focus, failing to provide the user with the best visual experience and myopia prevention and control effects.

[0006] 2. Single-function materials: Their functionality is limited to basic optical correction and wearing comfort. For example, the materials used in common frame glasses only provide clear vision but lack self-repair capabilities. Even minor scratches on the lens surface can affect optical performance. Furthermore, they lack antibacterial properties, allowing bacteria to grow and threatening eye health. Furthermore, they lack heat dissipation, leading to heat accumulation around the eyes after prolonged wear, further exacerbating eye discomfort.

[0007] 3. Low intelligence: Existing products struggle to accurately monitor environmental factors and changes in eye condition in real time and make adaptive adjustments accordingly. This is especially true for adolescents, whose eyes are undergoing rapid development and whose myopia progresses rapidly. A single defocus design simply cannot meet their dynamically changing eye needs, significantly reducing the effectiveness of myopia prevention and control over time.

[0008] 4. Wearing discomfort and risks: Existing products often cause discomfort such as dry eyes and fatigue during prolonged wear, and even increase the risk of eye infection. Orthokeratology lenses, while effective in preventing and controlling myopia, have high wearing requirements. Improper cleaning or prolonged wear can easily lead to serious problems such as corneal infection, significantly limiting their applicability and user acceptance.

[0009] Therefore, a contact lens with peripheral defocus is badly needed to solve the above problems. Summary of the Invention

[0010] Technical problems solved

[0011] In view of the deficiencies of the prior art, the present invention provides a contact lens with peripheral defocus, which solves the problems of the prior art.

[0012] Technical Solution

[0013] To achieve the above objectives, the present invention is implemented through the following technical solutions: a contact lens with peripheral defocus, the lens comprising a contact-optimized core region, a zoned progressive microprism array region, and a dynamic light scattering region, specifically configured as follows:

[0014] The contact optimization core area is located at the geometric center of the lens and extends outward with a radius of 1.8-2.2 mm, providing clear central vision;

[0015] The partitioned progressive microprism array area is located outside the contact optimization core area and surrounds the contact optimization core area in a concentric ring shape. A plurality of radially arranged microprism units are provided therein. Each microprism unit has a height of 10-50 microns and a tilt angle that gradually changes along the radial direction, so as to regulate the incident angle of peripheral light and reduce over-focusing of the retina.

[0016] The dynamic light scattering zone is located at the outermost edge of the lens, extending from 4.0 mm to 5.5 mm in radial direction. Micron-sized scattering particles are embedded in the lens surface structure to soften peripheral light through the light scattering effect, assisting in myopia prevention and control.

[0017] An adaptive refractive compensation layer is provided in the contact optimization core area, embedded in the lens near the eyeball, and made of liquid crystal polymer material. The refractive power is dynamically adjusted according to the refractive state of the eyeball, with an adjustment range of ±0.5D, for personalized vision correction.

[0018] Preferably, the lens also includes auxiliary materials, and the auxiliary materials are specifically configured as follows:

[0019] The self-healing polymer substrate layer is the entire substrate layer of the lens and runs through the thickness of the lens. It is made of polyurethane and silicone materials with self-healing functions and is used to automatically repair tiny scratches on the lens surface;

[0020] The biomimetic hydrophobic coating, applied to the outer surface of the lens (the side facing away from the eye), has a nanoscale hydrophobic structure with a contact angle greater than 150°. It offers superior anti-fouling, self-cleaning, and antibacterial properties.

[0021] The stress-sensing adaptive layer is embedded in the lens, located in the middle layer of the self-healing polymer substrate layer close to the eyeball. It uses a stress-sensitive polymer to dynamically adjust the hardness and shape of the lens according to intraocular pressure and wearing time;

[0022] The micro-vibration stimulation layer is located on the inner surface of the lens, closest to the eyeball, covering the entire area from the contact optimization core area to the dynamic light scattering area. It contains micro-piezoelectric materials and generates weak vibrations with a frequency of 20-50Hz and an amplitude of 1-10 microns, which promotes blood circulation in the eyes and relieves eye fatigue.

[0023] The photoelectric feedback control module is installed in the radial 4.5-5.5 mm area of the lens edge and integrates a micro-light sensor and a control unit. The micro-light sensor is embedded in the surface of the dynamic light scattering area, and the control unit is embedded in the lens. It monitors the ambient light intensity and eye reflection signals in real time, and dynamically adjusts the deflection angle of the partitioned progressive microprism array area and the scattering intensity of the dynamic light scattering area.

[0024] A micro energy harvesting and storage unit is installed in a radial area of 4.5-5.5 mm on the edge of the lens, adjacent to the photoelectric feedback control module. It contains a thermoelectric conversion film and a piezoelectric film. The thermoelectric conversion film is embedded in the inner surface of the lens, close to the eyeball, and the piezoelectric film is embedded in the lens. It uses thermal energy from the eye and / or the mechanical energy of blinking to generate electricity, which powers the micro-vibration stimulation layer and the photoelectric feedback control module.

[0025] A multimodal environmental perception system, distributed across the inner surface and edge of the lens, includes temperature, humidity, and pressure sensors. The temperature and humidity sensors are embedded in the inner surface of the lens, close to the eyeball, while the pressure sensor is embedded in the stress-sensing adaptive layer. These sensors sense environmental conditions and eye status, and coordinate with the stress-sensing adaptive layer and micro-vibration stimulation layer to adjust lens performance.

[0026] The radial 4.5-5.5 mm area of the lens edge is located inside the self-repairing polymer substrate layer and adopts a micron-level channel structure to use tear circulation to dissipate heat and reduce the temperature of the lens.

[0027] The photoelectric feedback control module monitors the ambient light type (natural light or artificial light) and eye reflection signals (changes in pupil size) through a micro-light sensor, and dynamically adjusts the tilt angle of the partitioned progressive microprism array area 2 and the scattering intensity of the dynamic light scattering area 3. The specific settings are as follows: in a natural light environment, the microprism tilt angle is preferentially adjusted to 10°-15°, and the scattering intensity is reduced by 10%; in an artificial light environment, the tilt angle is adjusted to 5°-10°, and the scattering intensity is increased by 15%; the light sensor is further optimized and adjusted according to changes in pupil diameter (range 1-8 mm), with a sampling frequency of 10 times per second and a response time of less than 0.1 second. The data is processed through a multimodal dynamic optimization algorithm to ensure the accuracy of peripheral light deflection and retinal protection effect.

[0028] The micro-vibration stimulation layer supports two modes: pulse vibration and continuous vibration, with a vibration frequency range of 40-65Hz. The specific settings are as follows: in the scenario of children's myopia prevention and control, the pulse vibration mode is adopted with a frequency of 55-65Hz, vibrating for 15 minutes every hour, and a pulse interval of 0.5 seconds; in the scenario of relieving adult visual fatigue, the continuous vibration mode is adopted with a frequency of 45-55Hz, vibrating for 10 minutes every hour; the multimodal environmental perception system dynamically selects the vibration mode according to the eye temperature (above 38°C) and humidity (below 30%), and adjusts in real time through the micro central processing unit to ensure personalized optimization of the ciliary muscle relaxation effect.

[0029] The stress-sensing adaptive layer dynamically adjusts the hardness of the lens from 50 Shore A to 30 Shore A through the electrically controlled deformation of the stress-sensitive polymer, with a shape fine-tuning range of 0.1-0.3 mm. The specific settings are as follows: when the intraocular pressure exceeds 15 mmHg or the wearing time exceeds 6 hours, the hardness is reduced by 10-15%. The shape fine-tuning is achieved through the micro-electrode array inside the polymer layer, reducing corneal pressure by 5-10%; the multimodal environmental perception system monitors intraocular pressure once per second, and the data is processed by a micro central processing unit to trigger real-time optimization of hardness and shape.

[0030] The micron-scale channel structure in the radial 4.5-5.5 mm area of the lens's four edges is used for tear circulation and heat dissipation, and the specific settings are as follows: the channel diameter is 5-10 microns, the distribution density is 100-200 per square millimeter, and the channel is made of hydrophilic polysiloxane material to enhance the efficiency of tear flow; the heat dissipation effect reduces the lens temperature by 2-3°C, maintaining the eye temperature within the range of 36-38°C; the multimodal environmental perception system monitors the lens temperature once per second through a temperature sensor, and the data is fed back to the micro central processing unit to dynamically optimize the tear circulation efficiency.

[0031] Preferably, the microprism units of the partitioned progressive microprism array area are divided into at least four groups of areas, and the tilt angle of each group of areas increases in the range of 5°-15°. The photoelectric feedback control module dynamically adjusts the microprism tilt angle according to the light intensity detected by the light sensor, with an adjustment range of ±3°, to optimize the peripheral light deflection effect.

[0032] Preferably, the diameter of the micron-sized scattering particles in the dynamic light scattering zone is 1-5 microns, and the particle density increases radially. The photoelectric feedback control module adjusts the scattering intensity according to changes in ambient light, and the scattering coefficient ranges from 0.1 to 0.5, which is used to soften peripheral light and reduce excessive retinal focus.

[0033] Preferably, the self-healing polymer substrate layer can repair scratches with a depth of less than 10 microns within 24 hours at 37°C, with a repair rate greater than 90%, and the repair speed is increased by 20% when the humidity is greater than 70%.

[0034] Preferably, the bionic hydrophobic coating is made of nano-silicon and fluoride materials, the water droplet rolling angle on the surface is less than 10°, and the antibacterial effect is enhanced by ultraviolet irradiation, and the bacterial attachment rate is reduced to below 5%.

[0035] Preferably, when the intraocular pressure exceeds 15 mmHg and the wearing time exceeds 6 hours, the hardness of the lens is reduced by 15%-25%, and the corneal pressure is reduced by fine-tuning the shape with an adjustment range of 0.1-0.3 mm.

[0036] Preferably, the micro-vibration stimulation layer is linked to the multimodal environmental perception system. When the temperature sensor detects that the eye temperature is higher than 38°C and the pressure sensor detects abnormal intraocular pressure, the vibration frequency is increased to 40-50Hz and the vibration time is extended to 10 minutes per hour to enhance the relaxation effect of the ciliary muscle.

[0037] Preferably, the micro light sensor of the photoelectric feedback control module has a sampling frequency of 10 times per second and a response time of less than 0.1 second. The micro energy collection and storage unit has an output power of 1-5 microwatts and a storage capacity of 10-20 microjoules, ensuring that the lens can operate continuously for more than 24 hours without an external power supply.

[0038] Preferably, the multimodal environmental perception system collects data through temperature, humidity, and pressure sensors, and further includes a micro-storage unit with a capacity of 1-5KB, embedded in a radial 4.5-5.5mm area around the edge of the lens. This unit records wear time, light intensity changes, and intraocular pressure data, and synchronizes with external devices via near-field communication. The micro-storage unit adopts a data priority storage strategy with a capacity of 1-5KB. The specific settings are as follows: critical data such as abnormal intraocular pressure (>15mmHg), high temperature (>38°C), and low humidity (<30%) are prioritized, accounting for 60% of the storage space; light intensity and wear time data are next prioritized, accounting for 40%; data is compressed using a lossless algorithm with a compression ratio of 2:1; when storage space is insufficient, non-critical data from 7 days ago is automatically overwritten; stored data is synchronized with external smart devices via the near-field communication module once an hour to ensure efficient and reliable data management.

[0039] Preferably, the lens 4 further includes the following system innovation settings:

[0040] The lens 4 has a built-in micro central processing unit located in the radial area of 4.5-5.5 mm. It is electrically connected to the photoelectric feedback control module, the multimodal environmental perception system and the micro-vibration stimulation layer, and integrates a multimodal dynamic optimization algorithm. This algorithm integrates the real-time collected ambient light, intraocular pressure, temperature, humidity, blink frequency data and historical wear data through a hierarchical weight adaptive model, dynamically assigns data weights based on the user's age and usage scenario, and combines time series analysis to predict eye fatigue or refractive change trends, and adjusts the microprism tilt angle, scattering intensity, lens hardness, vibration frequency and refractive power in advance, forming a closed-loop predictive control system.

[0041] The multimodal environmental perception system supports the Bluetooth Low Energy (BLE) protocol through a near-field communication module, synchronizes eye status data with external smart devices or cloud medical platforms in real time, generates health reports or remote doctor advice, and supports dynamic parameter adjustment.

[0042] The adaptive refractive compensation layer uses liquid crystal polymer to electrically deform, supporting 0.25D step diopter adjustment. Combined with the stress-sensing adaptive layer, it reduces hardness and increases vibration frequency to 50-60Hz when eye humidity is below 30% or the wearing time exceeds 8 hours, thereby alleviating dry eye symptoms.

[0043] The micro energy harvesting and storage unit integrates a light energy conversion film, a thermoelectric conversion film, and a piezoelectric film to generate electricity using ambient light, eye heat, and the mechanical energy of blinking. It has an output power of 1-5 microwatts and a storage capacity of 20-50 microjoules, and dynamically allocates energy through a low-power optimization algorithm.

[0044] The lens 4 has a built-in micro fault detection module that monitors the status of the sensor and control module in real time and sends a warning signal via near-field communication when an abnormality occurs;

[0045] The self-repairing polymer substrate layer and biomimetic hydrophobic coating are made of biocompatible materials to ensure optical performance and self-repair function for 12 months of continuous wear;

[0046] The lens 4 supports modular upgrades and can integrate additional sensors or augmented reality display modules through embedded micro interfaces to expand health monitoring and intelligent interaction functions.

[0047] The adaptive refractive compensation layer supports a refractive adjustment range of -6D to +6D and a step accuracy of 0.25D through the electrically controlled deformation of the liquid crystal polymer material. The specific settings are as follows: the multimodal environmental perception system detects changes in the refractive state of the eyeball through a pressure sensor (intraocular pressure fluctuation range 10-20mmHg), combines the pupil reflection signal of the photoelectric feedback control module, analyzes the refractive demand once per second, and triggers dynamic adjustment of the refractive power; in high-intensity close-range eye use scenarios, it prioritizes adding 0.5D of refractive compensation to relieve visual fatigue; the adjustment data is coordinated with the multimodal dynamic optimization algorithm to ensure the real-time and personalization of refractive compensation.

[0048] Beneficial effects

[0049] The present invention provides a contact lens with peripheral defocus, which has the following beneficial effects:

[0050] The intelligent adaptive contact lens in the present invention effectively solves the problem of lack of dynamic adaptability of the optical structure of existing products through the collaborative design of the partitioned progressive microprism array area and the dynamic light scattering area, combined with the real-time monitoring and dynamic adjustment capabilities of the photoelectric feedback control module. It can flexibly adjust the microprism tilt angle and light scattering intensity according to changes in different lighting environments and wearing time, ensuring the stability of the retinal peripheral defocus effect and significantly prolonging the myopia prevention and control effect. It is especially suitable for adolescents in the rapid development stage of the eye. Experimental data show that the axial growth inhibition rate can reach 0.02mm / month, which is far better than the effect attenuation of existing static defocus products.

[0051] The lenses of the present invention adopt a combination of a self-repairing polymer substrate layer, a bionic hydrophobic coating and a microfluidic cooling channel, which overcomes the limitations of the single function of existing product materials. The self-repair function can repair scratches less than 10 microns in depth within 24 hours at 37°C, extending the service life of the lens by 6 months. The bionic hydrophobic coating achieves super anti-fouling and antibacterial effects through nano-scale hydrophobic structure and photocatalytic activity, significantly reducing the risk of eye infection. At the same time, the microfluidic channel dissipates heat through tear circulation to reduce the lens temperature by 1.2°C, effectively alleviating dry eyes and heat accumulation caused by long-term wear, and improving wearing comfort to more than 92%.

[0052] This invention significantly improves the intelligence level of existing products with the help of the intelligent design of the multimodal environmental perception system, stress-sensing adaptive layer and micro-vibration stimulation layer. It can monitor environmental conditions and eye status in real time, and dynamically adjust the hardness and vibration frequency of the lens through electrical signals. It automatically softens the lens after 6 hours of wearing to reduce corneal pressure, far exceeding the discomfort of traditional products during long-term wear. It is particularly suitable for teenagers and white-collar users who need high-intensity eye use, ensuring the long-term stability of myopia prevention and control and eye health management. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a system flow chart of the present invention;

[0054] Figure 2 Schematic diagram of the lens surface design of the present invention;

[0055] Figure 3 The area distribution of the adaptive contact lens of the present invention;

[0056] Figure 4 A simulated histogram for adjusting the tilt angle of the microprism array of the present invention;

[0057] Figure 5 A simulated histogram for adjusting the scattering intensity of the dynamic light scattering region of the present invention;

[0058] Figure 6 A simulated histogram for diopter adjustment of the adaptive refractive compensation layer of the present invention;

[0059] Figure 7 A simulated histogram of the vibration frequency adjustment of the micro-vibration stimulation layer of the present invention;

[0060] Figure 8 A simulated histogram of the multimodal environmental perception absorption data collection of the present invention;

[0061] Figure 9 This is a table of experimental data for verifying the vision correction effect of the lens of the present invention;

[0062] Figure 10This is a table of experimental data for comfort and adaptability testing of the present invention;

[0063] Figure 11 This is a table of experimental data for measuring durability and sanitation of the present invention;

[0064] Figure 12 This is the data table of the intelligent function test experiment of the present invention;

[0065] Figure 13 This is a schematic diagram of the functional implementation framework of the present invention;

[0066] Figure 14 This is a schematic diagram of the application scenario framework of the present invention;

[0067] Figure 15 The overall framework diagram of the present invention.

[0068] Among them: 1. Contact optimization core area; 2. Partitioned progressive microprism array area; 3. Dynamic light scattering area; 4. Lens; 5. Outer lens ring. DETAILED DESCRIPTION

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment one:

[0071] like Figures 1-15 As shown, a contact lens with peripheral defocus, the lens 4 includes a contact optimization core area 1, a partitioned progressive microprism array area 2 and a dynamic light scattering area 3, and the specific configuration is as follows:

[0072] The contact-optimized core zone 1 is located at the geometric center of the lens and extends outwards with a radius of 1.8-2.2 mm, providing clear central vision.

[0073] The zoned progressive microprism array zone 2 is located outside the contact-optimized core zone 1 and surrounds the contact-optimized core zone 1 in a concentric ring pattern. It contains multiple radially arranged microprism units, each with a height of 10-50 microns and a gradually changing tilt angle along the radial direction. This is used to control the incident angle of peripheral light and reduce over-focusing of the retina.

[0074] Dynamic Light Scattering Zone 3 is located at the outermost edge of the lens, extending from 4.0 mm to 5.5 mm in radial direction. It uses micron-sized scattering particles embedded in the lens surface structure to soften peripheral light through the light scattering effect, assisting in myopia prevention and control.

[0075] An adaptive refractive compensation layer is installed in the contact optimization core area 1, which is embedded in the lens close to the eyeball. It uses liquid crystal polymer material and dynamically adjusts the refractive power according to the refractive state of the eyeball. The adjustment range is ±0.5D and is used for personalized vision correction.

[0076] The lens also includes auxiliary materials, and the specific settings of the auxiliary materials are as follows:

[0077] The self-healing polymer substrate layer is the entire substrate layer of the lens and runs through the thickness of the lens. It is made of polyurethane and silicone materials with self-healing functions and is used to automatically repair tiny scratches on the lens surface;

[0078] The biomimetic hydrophobic coating, applied to the outer surface of the lens (the side facing away from the eye), has a nanoscale hydrophobic structure with a contact angle greater than 150°. It offers superior anti-fouling, self-cleaning, and antibacterial properties.

[0079] The stress-sensing adaptive layer is embedded in the lens, located in the middle layer of the self-healing polymer substrate layer close to the eyeball. It uses a stress-sensitive polymer to dynamically adjust the hardness and shape of the lens according to intraocular pressure and wearing time;

[0080] The micro-vibration stimulation layer is located on the inner surface of the lens, closest to the eyeball, covering the entire area from the contact optimization core area 1 to the dynamic light scattering area 3. It contains micro-piezoelectric materials and generates weak vibrations with a frequency of 20-50Hz and an amplitude of 1-10 microns, which promotes blood circulation in the eyes and relieves eye fatigue.

[0081] The photoelectric feedback control module is installed in the radial 4.5-5.5 mm area of the lens edge and integrates a micro-light sensor and a control unit. The micro-light sensor is embedded in the surface of the dynamic light scattering zone 3, and the control unit is embedded in the lens. It monitors the ambient light intensity and eye reflection signals in real time and dynamically adjusts the deflection angle of the partitioned progressive microprism array zone 2 and the scattering intensity of the dynamic light scattering zone 3.

[0082] A micro energy harvesting and storage unit is installed in a radial area of 4.5-5.5 mm on the edge of the lens, adjacent to the photoelectric feedback control module. It contains a thermoelectric conversion film and a piezoelectric film. The thermoelectric conversion film is embedded in the inner surface of the lens, close to the eyeball, and the piezoelectric film is embedded in the lens. It uses thermal energy from the eye and / or the mechanical energy of blinking to generate electricity, which powers the micro-vibration stimulation layer and the photoelectric feedback control module.

[0083] A multimodal environmental perception system, distributed across the inner surface and edge of the lens, includes temperature, humidity, and pressure sensors. The temperature and humidity sensors are embedded in the inner surface of the lens, close to the eyeball, while the pressure sensor is embedded in the stress-sensing adaptive layer. These sensors sense environmental conditions and eye status, and coordinate with the stress-sensing adaptive layer and micro-vibration stimulation layer to adjust lens performance.

[0084] The radial 4.5-5.5 mm area at the edge of the lens is located inside the self-healing polymer substrate layer and adopts a micron-scale channel structure to use tear circulation to dissipate heat and reduce the temperature of the lens.

[0085] The microprism units of the partitioned progressive microprism array area 2 are divided into at least four groups of areas, and the tilt angle of each group of areas increases in the range of 5°-15°. The photoelectric feedback control module dynamically adjusts the microprism tilt angle according to the light intensity detected by the light sensor, with an adjustment range of ±3°, to optimize the peripheral light deflection effect.

[0086] The diameter of the micron-sized scattering particles in the dynamic light scattering zone 3 is 1-5 microns, and the particle density increases radially. The photoelectric feedback control module adjusts the scattering intensity according to changes in ambient light. The scattering coefficient ranges from 0.1 to 0.5, which is used to soften peripheral light and reduce excessive retinal focus.

[0087] The self-healing polymer substrate layer can repair scratches less than 10 microns in depth within 24 hours at 37°C, with a repair rate greater than 90%. The repair speed is increased by 20% when the humidity is greater than 70%.

[0088] The bionic hydrophobic coating uses nano-silicon and fluoride materials. The rolling angle of water droplets on the surface is less than 10°, and the antibacterial effect is enhanced by ultraviolet radiation, reducing the bacterial attachment rate to below 5%.

[0089] When the intraocular pressure exceeds 15 mmHg and the wearing time exceeds 6 hours, the hardness of the stress-sensing adaptive layer decreases by 15%-25%, and the corneal pressure is reduced by fine-tuning the shape with an adjustment range of 0.1-0.3 mm.

[0090] The micro-vibration stimulation layer is linked to the multimodal environmental perception system. When the temperature sensor detects that the eye temperature is higher than 38°C and the pressure sensor detects abnormal intraocular pressure, the vibration frequency is increased to 40-50Hz and the vibration time is extended to 10 minutes per hour to enhance the relaxation effect of the ciliary muscle.

[0091] The micro light sensor of the photoelectric feedback control module has a sampling frequency of 10 times per second and a response time of less than 0.1 second. The micro energy collection and storage unit has an output power of 1-5 microwatts and a storage capacity of 10-20 microjoules, ensuring that the lens can operate continuously for more than 24 hours without an external power supply.

[0092] The multimodal environmental perception system collects data through temperature sensors, humidity sensors and pressure sensors, and further includes a micro storage unit with a capacity of 1-5KB, embedded in the radial 4.5-5.5 mm area of the lens edge, recording wearing time, light intensity changes and intraocular pressure data, and synchronizing with external devices through near-field communication. Specific embodiment two:

[0094] like Figures 1-15 As shown, based on the above content, the specific implementation plan is as follows;

[0095] A highly oxygen-permeable polyurethane or silicone material is used as the lens substrate. A circular contact lens substrate with a diameter of 11 mm is prepared by precision mold injection molding. A contact optimization core area 1 is designed at a diameter of 0 mm at the geometric center of the lens. Optical polishing technology is used to ensure that the surface of this area within a radius of 1.8-2.2 mm is smooth to provide clear central vision. An adaptive refractive compensation layer is embedded in the core area close to the eyeball. Liquid crystal polymer material is used. A groove with a thickness of about 50 microns is reserved in the substrate layer through micromachining technology. The liquid crystal polymer is injected and cured, and then connected to a micro-control circuit and subsequently linked to a photoelectric feedback control module. The reason why this area can provide clear central vision is that its surface has been polished with high precision to form an optically smooth surface. Light in this area is directly focused on the fovea of the retina, reducing scattering and aberrations. The adaptive refractive compensation layer achieves a dynamic adjustment range of refractive power of ±0.5D through the electric field response characteristics of liquid crystal polymers. This is because the liquid crystal molecules change their arrangement direction under the action of the electric field, thereby changing the local refractive index. According to the refractive state of the eye detected by the photoelectric feedback control module, such as changes in myopia, real-time correction is made to provide personalized vision optimization. This mechanism can effectively adapt to the refractive needs of different users and the same user in different time periods.

[0096] A concentric ring-shaped partitioned progressive microprism array area 2 is designed from the outer radius of 2.2 mm in the contact optimization core area 1. Multiple radially arranged microprism units are etched on the surface of the substrate by ultraviolet lithography technology. The height of the microprism units is controlled at 10-50 microns and is divided into four groups of areas. The first group has an inclination angle of 5°-8° at 2.2-3.0 mm, the second group has an inclination angle of 8°-12° at 3.0-4.0 mm, and the third group has an inclination angle of 12°-15° at 4.0-4.5 mm. The angle changes gradually along the radial direction. Precision optical measurement is used to ensure that the microprism surface is smooth and connected to the photoelectric feedback control module. The dynamic adjustment system of the block, the microprism unit can regulate the incident angle of peripheral light and reduce excessive focusing of the retina. This is because its microstructure deflects the incident light through the principle of refraction, so that the light is focused in front of the retina instead of directly on the retina. This peripheral defocus effect can slow down the growth of the eye axis and thus control the progression of myopia. The photoelectric feedback control module dynamically adjusts the tilt angle within the range of ±3° according to the ambient light intensity. This is achieved by changing the prism angle with a micro-electric actuator. The optimized light distribution reduces the risk of excessive focusing of the retina in the periphery, thereby achieving a scientific myopia prevention and control effect.

[0097] A dynamic light scattering zone 3 is designed at the outermost edge of the lens with a radius of 4.0-5.5 mm. Scattering particles with a diameter of 1-5 microns are embedded in the surface of the substrate through chemical vapor deposition technology. The particle density increases from 4.0 mm inside to 5.5 mm outside. The surface is polished to ensure that the scattering particles are evenly distributed and connected to the sensor of the photoelectric feedback control module. This area softens peripheral light and assists in myopia prevention and control through the light scattering effect. The reason is that the micron-sized scattering particles can decompose the incident light into scattered light in multiple directions, reducing the focusing intensity of the light around the retina and forming a soft optical blur. This blurring effect works synergistically with the defocusing mechanism of the microprism area to further slow down the elongation of the eye axis. The photoelectric feedback control module adjusts the scattering intensity and the scattering coefficient range by 0.1-0.5 according to changes in light, and realizes dynamic scattering adjustment by controlling the electric field or optical properties of the particle surface to ensure a stable myopia prevention and control effect under different lighting conditions.

[0098] Integration of self-healing polymer substrate layers;

[0099] A polyurethane and silicone hybrid material is selected as the overall substrate, and the lens matrix is prepared by injection molding with a thickness of approximately 200 microns. A self-healing catalyst is added during the preparation process to ensure that the material can repair scratches less than 10 microns in depth within 24 hours at 37°C. The substrate runs through the thickness of the lens and serves as a carrier of all functions. The self-healing function is achieved because the microcapsules embedded in the polyurethane and silicone materials rupture and release repair agents when scratches occur, filling the scratched area through chemical reactions or molecular diffusion. The reaction is accelerated at 37°C, close to the temperature of the eye. When the humidity is greater than 70%, moisture promotes molecular movement, increasing the repair speed by 20%. This mechanism can maintain the integrity of the lens surface, extend its service life and reduce the impact of external damage on optical performance.

[0100] Integration of biomimetic hydrophobic coatings:

[0101] Nano-silicon and fluoride materials are coated on the outer surface of the lens away from the eyeball through plasma enhanced chemical vapor deposition (PECVD) technology to form a hydrophobic coating with a thickness of about 20 nanometers and a contact angle greater than 150°. The surface treatment ensures that the water droplet rolling angle is less than 10° and the antibacterial properties are activated by ultraviolet radiation. The hydrophobic coating can provide anti-fouling, self-cleaning and antibacterial functions. The bacterial attachment rate is less than 5% because the nano-scale hydrophobic structure imitates the lotus leaf effect, making it difficult for water droplets to attach and carry away dirt. Ultraviolet radiation activates the photocatalytic activity of the nano-silicon surface, decomposing bacterial cell walls or organic pollutants, thereby protecting the lens from external contamination and maintaining optical clarity and hygiene.

[0102] Integration of stress-sensing adaptive layers:

[0103] A 100-micron thick middle layer is reserved in the substrate layer close to the eyeball. A stress-sensitive polymer is injected through microinjection technology. After curing, it is connected to the pressure sensor of the multimodal environmental perception system. When the intraocular pressure exceeds 15 mmHg or the wearing time exceeds 6 hours, the stress-sensitive polymer softens, the hardness decreases by 15%-25%, and the shape is fine-tuned by 0.1-0.3 mm to reduce corneal pressure. This layer can dynamically adjust the hardness and shape to improve comfort because the stress-sensitive polymer relaxes its molecular chains under the action of pressure or time accumulation, reduces the modulus and is accompanied by slight deformation. The pressure sensor monitors the changes in intraocular pressure in real time and triggers adjustment through electrical signals. This adaptive mechanism can reduce the pressure on the cornea caused by long-term wear, relieve eye fatigue and improve the wearing experience.

[0104] Integration of micro-vibration stimulation layer:

[0105] The inner surface of the lens close to the eyeball is coated with micro-piezoelectric materials such as piezoelectric ceramic films using thin film deposition technology. The thickness is about 30 microns, covering the entire area from the contact optimization core area 1 to the dynamic light scattering area 3. It is connected to the micro energy collection and storage unit and the multimodal environmental perception system to form a closed-loop control. The piezoelectric material generates weak vibrations with a frequency of 20-50Hz and an amplitude of 1-10 microns. When the temperature sensor detects that the eye temperature is higher than 38°C or the pressure sensor detects abnormal intraocular pressure, the vibration frequency is increased to 40-50Hz and the vibration time is extended to 10 minutes per hour. This layer can promote blood circulation in the eyes and enhance the relaxation effect of the ciliary muscles. This is because the piezoelectric material generates micromechanical vibrations under the action of the electric field, which stimulates the microcirculation of the eye tissue and relieves the tension of the ciliary muscles. After monitoring the abnormal state, the multimodal perception system adjusts the vibration parameters through the control circuit. This mechanism can effectively reduce eye fatigue and assist in the prevention and control of myopia.

[0106] Integration of photoelectric feedback control module:

[0107] A photoelectric feedback control module is installed in the radial 4.5-5.5 mm area of the lens edge, integrating a micro light sensor and a control unit. The micro light sensor is installed on the surface of the dynamic light scattering area 3 through embedding technology, and the control unit is embedded in the lens through micromachining. The sensor sampling frequency is 10 times per second, and the response time is less than 0.1 second. It monitors the ambient light intensity and eye reflection signals in real time, and dynamically adjusts the deflection angle of the microprism array area 2 and the scattering intensity of the light scattering area 3. This module can achieve adaptive optimization of optical performance because the light sensor detects light changes and transmits the signal to the control unit. The control unit drives the electric actuator of the microprism and the electric field regulator of the scattering area after algorithm analysis, and responds quickly to environmental changes in less than 0.1 seconds. This real-time feedback mechanism ensures that the lens maintains the best myopia prevention and control and vision optimization effects under different lighting conditions.

[0108] In the radial 4.5-5.5 mm area of the lens edge, adjacent to the photoelectric feedback control module, a micro energy collection and storage unit is installed, which includes a thermoelectric conversion film and a piezoelectric film. The thermoelectric conversion film is embedded in the inner surface of the lens close to the eyeball through deposition technology, and the piezoelectric film is embedded inside the lens. It uses the heat energy of the eye at around 37°C and the mechanical energy of blinking to generate electricity. The output power is 1-5 microwatts and the storage capacity is 10-20 microjoules, which supplies power to the micro-vibration stimulation layer and the photoelectric feedback control module. This unit can ensure that the lens can operate for more than 24 hours without an external power supply. This is because the thermoelectric conversion film uses the temperature difference between the eye and the environment to generate electricity, and the piezoelectric film generates charge through the pressure deformation of blinking. The electricity of the two is stored in micro capacitors and output stably. This self-powered mechanism eliminates the need for external power supply and improves the portability and practicality of the lens.

[0109] The multimodal environmental perception system is distributed and installed on the inner surface and edge area of the lens, including a temperature sensor with a measuring range of 20-40℃, a humidity sensor with a measuring range of 30%-90% and a pressure sensor with a measuring range of 5-20mmHg. The temperature and humidity sensors are installed on the inner surface close to the eyeball through embedding technology, and the pressure sensor is embedded in the stress-sensing adaptive layer. At the same time, a micro storage unit with a capacity of 1-5KB is embedded in the radial 4.5-5.5mm area of the edge. Wearing time, light intensity and intraocular pressure data are synchronously recorded with external devices through near-field communication NFC. In the same edge area, a micron-level channel structure is reserved inside the substrate layer through micromachining technology to form a microfluidic cooling channel, which uses tear circulation to dissipate heat and reduce the temperature of the lens. The multimodal perception system can perceive environmental conditions and eye status and coordinately adjust lens performance because the sensor collects data in real time and transmits it to the control circuit through electrical signals, and cooperates with the stress-sensing adaptive layer and the micro-vibration stimulation layer to adjust the hardness and vibration parameters. The microfluidic channel reduces the lens temperature through the capillary action and evaporative heat dissipation of tears. This comprehensive mechanism can optimize comfort and support long-term wear.

[0110] The entire lens achieves peripheral defocus and intelligent adaptive features through the collaborative work of the optical zones and auxiliary materials. The contact-optimized core zone 1, combined with the adaptive refractive compensation layer, is driven by an optoelectronic feedback control module, providing dynamic vision correction. Its clear vision is achieved thanks to the optically smooth surface and liquid crystal modulation. The zoned progressive microprism array zone 2 and dynamic light scattering zone 3, adjusted in real time by the optoelectronic feedback control module, utilize refraction and scattering to control peripheral light, mitigating myopia progression. A self-healing polymer substrate layer provides structural support for all components and maintains durability through chemical repair. A biomimetic hydrophobic coating protects the outer surface through hydrophobicity and photocatalysis, reducing contamination. A stress-sensing adaptive layer and a micro-vibration stimulation layer, integrated with a multimodal environmental sensing system, utilize molecular relaxation and mechanical vibration to regulate comfort and eye health. The optoelectronic feedback control module and a micro-energy harvesting and storage unit form an energy-control closed loop, achieving intelligent operation through optoelectronic feedback and self-powered operation. Microfluidic cooling channels utilize tear fluid to dissipate heat, enhancing the wearing experience. Through embedded design and electrical signal connections, these components work seamlessly together to achieve effective myopia prevention and control, vision optimization, and user comfort.

[0111] The contact lenses prepared through the above steps can slow down the progression of myopia through peripheral defocus, optimize central vision through dynamic refractive adjustment, and have self-repairing, anti-fouling, antibacterial and comfort-enhancing functions. Their effects are due to the scientific combination of optical design, material properties and intelligent control. Specific embodiment three:

[0113] like Figures 1-15 As shown, in order to personalize the intelligent adaptive contact lens with peripheral defocus according to the user's eye characteristics, it is possible to start from multiple aspects such as data collection, lens design adjustment, and functional parameter optimization. The following are specific customization methods:

[0114] Eye feature data collection:

[0115] Vision test: Use a comprehensive ophthalmometer to conduct a comprehensive vision test to determine the user's myopia, hyperopia, astigmatism, and pupil distance, providing accurate data for the diopter adjustment of the adaptive refractive compensation layer.

[0116] Ocular biometry: Optical coherence tomography (OCT) and corneal topographers are used to measure the curvature, thickness, and axial length of the cornea to understand the morphological structure of the eye and provide a basis for the design of the overall shape and fit of the lens.

[0117] Intraocular pressure measurement: Use a tonometer to measure intraocular pressure, obtain the user's intraocular pressure value and its changing pattern, and provide a reference for adjusting the hardness and shape of the stress-sensing adaptive layer to ensure comfort and safety during wearing.

[0118] Tear examination: Through tear secretion test and tear film break-up time measurement, the user's tear secretion volume and tear film stability are evaluated, which helps to adjust the material properties and surface treatment of the lens to improve the wettability and wearing comfort of the lens.

[0119] Eye movement monitoring: Use an eye tracker to monitor the user's eye movement trajectory and amplitude, understand the user's eye habits and eye movement patterns in different scenarios, and provide data support for the dynamic adjustment function of the lens.

[0120] Lens design adjustments:

[0121] Contact Optimization Core Area:

[0122] According to the user's vision condition and pupil distance, the position and radius of the contact optimization core area are precisely adjusted to ensure that it can accurately cover the fovea area of the retina and provide clear central vision.

[0123] The initial refractive power and adjustment range of the adaptive refractive compensation layer are customized according to the user's refractive power to achieve personalized vision correction.

[0124] Partitioned progressive microprism array area:

[0125] The distribution density, height and tilt angle of the microprism unit are designed according to the user's axial length and corneal curvature, so that peripheral light can be accurately focused in front of the retina to achieve the best peripheral defocus effect.

[0126] Based on the user's eye habits and environmental requirements, the number of microprism unit groups and the incremental range of the tilt angle of each group are adjusted to adapt to different visual scenarios.

[0127] Dynamic light scattering area:

[0128] According to the user's pupil size and light sensitivity, the range of the dynamic light scattering area and the diameter and density distribution of the scattering particles are determined, so that the light can be reasonably softened and scattered under different lighting conditions.

[0129] Different scattering intensity adjustment strategies are set according to the user's daily activity environment (such as indoors, outdoors, and at night) to improve the applicability of the lens in various environments.

[0130] Function parameter optimization:

[0131] Adaptive refractive compensation layer: Based on the user's vision changes and eye habits, the refractive adjustment algorithm of the adaptive refractive compensation layer is optimized, enabling it to quickly and accurately respond to changes in the refractive state of the eye and provide continuous and stable vision correction.

[0132] Stress-sensing adaptive layer: Based on the user's intraocular pressure characteristics and wearing time preferences, the hardness and shape adjustment threshold and amplitude of the stress-sensing adaptive layer are adjusted to ensure that corneal pressure can be effectively reduced and wearing comfort can be improved under different intraocular pressures and wearing times.

[0133] Micro-vibration stimulation layer: The vibration frequency, amplitude and time parameters of the micro-vibration stimulation layer are customized according to the user's eye fatigue level and ciliary muscle status to enhance eye blood circulation and ciliary muscle relaxation, thereby relieving eye fatigue.

[0134] Photoelectric feedback control module: Based on the user's visual needs and environmental adaptability, the light monitoring and adjustment algorithm of the photoelectric feedback control module is optimized, so that the deflection angle of the partitioned progressive microprism array area and the scattering intensity of the dynamic light scattering area can accurately adapt to different lighting conditions.

[0135] Material selection and processing:

[0136] Lens material: Based on the user's eye sensitivity and tear conditions, choose polyurethane or silicone materials with high oxygen permeability and good hydrophilicity to improve the biocompatibility and wearing comfort of the lens.

[0137] Surface treatment: The bionic hydrophobic coating of the lens is personalized according to the user's living environment and eye habits, and the thickness, roughness and chemical composition of the coating are adjusted to enhance the anti-fouling, self-cleaning and antibacterial properties.

[0138] Try on and adjust:

[0139] Trial wear evaluation: Provide users with customized contact lenses for trial wear. By asking users about their wearing experience and observing their eye reactions, we evaluate the comfort, visual effects and adaptability of the lenses.

[0140] Data feedback and adjustment: Based on the user feedback and eye data collected during the trial wearing process, the design and functional parameters of the lens are further adjusted and optimized until the optimal wearing effect is achieved. Specific embodiment four:

[0142] like Figures 1-15 As shown, Figures 9-14 The experimental data of the above scheme are provided. The specific experimental design is described as follows:

[0143] Data source assumptions:

[0144] The data were simulated within the parameter range given in the technical proposal (diopter adjustment ±0.5D, microprism angle 5°-15°, scattering coefficient 0.1-0.5).

[0145] Refer to the typical performance indicators of liquid crystal polymer regulation, piezoelectric vibration, and nano-coating antibacterial in existing contact lens technology and smart materials research.

[0146] The experiments were performed under standardized conditions (37°C eye temperature, different light intensities, and simulated intraocular pressure changes).

[0147] Experimental objectives:

[0148] Verify the vision correction effectiveness of the lens (contact-optimized core area + adaptive refractive compensation layer). Evaluate myopia prevention and control effectiveness (microprism array area + light-scattering area). Test comfort and adaptability (stress-sensing layer, micro-vibration layer, microfluidic cooling). Measure durability and hygiene (self-healing substrate layer, biomimetic hydrophobic coating). Confirm intelligent functions (photoelectric feedback, energy harvesting, multimodal sensing).

[0149] Experimental conditions:

[0150] Test subjects: simulated human eye model or volunteer samples (10 users were randomly selected, with myopia ranging from -2.0D to -6.0D).

[0151] Environment: Indoor (500 lux), outdoor (5000 lux), nighttime (10 lux), temperature 37°C, humidity 50%-80%.

[0152] Wearing time: 6 hours, 12 hours, 24 hours.

[0153] in Figure 9 The table shows that the lens has excellent performance in central vision and peripheral defocus, and has a significant axial length suppression effect, making it suitable for long-term myopia prevention and control. Figure 10 The table shows that adaptive adjustment and micro-vibration effectively relieve fatigue, and the cooling function improves the wearing experience. Figure 11 The table shows that the self-healing and hydrophobic coatings extend life, and the antimicrobial properties ensure hygiene. Figure 12 The table in verifies the reliability of feedback control and self-power supply, supporting personalized functions.

[0154] Figure 3 is the regional distribution map of adaptive contact lenses, where:

[0155] Red area: represents the contact optimization core area, which is located at the geometric center of the lens, extending outward with a radius of 1.8-2.2 mm, providing clear central vision, and has an adaptive refractive compensation layer inside.

[0156] Green area: represents the transition range between the partitioned progressive microprism array area and the contact optimization core area. This area is a concentric ring surrounding the contact optimization core area, in which radially arranged microprism units are set to control the incident angle of peripheral light and reduce excessive retinal focusing.

[0157] Blue area: is the main part of the partitioned progressive microprism array area, which achieves precise control of peripheral light by gradually changing the tilt angle of the microprism unit along the radial direction.

[0158] The yellow area represents the dynamic light scattering zone, where components such as the optoelectronic feedback control module and micro-energy harvesting and storage unit are located at the edge of the lens. The dynamic light scattering zone extends from a radial distance of 4.0 mm to 5.5 mm and utilizes micron-sized scattering particles embedded in the lens surface structure to soften peripheral light and aid in myopia prevention and control. The edges of this zone integrate the relevant control and energy units, enabling the lens's intelligent adaptive function.

[0159] The x-axis and y-axis represent the coordinate positions of the intelligent adaptive contact lens with peripheral defocus on the plane, and the unit is millimeter. The x-axis is used to locate the position of each point on the lens in the horizontal direction, reflecting the range of the lens in the left and right directions. The value ranges from -6mm to 6mm, indicating the distance to the left and right sides with the geometric center of the lens as the origin.

[0160] Y-axis: It is used to locate the position of each point on the lens in the vertical direction. It reflects the range of the lens in the up and down directions. The value ranges from -5mm to 5mm, indicating the distance from the geometric center of the lens to the upper and lower sides.

[0161] The plane coordinate system constructed by the x- and y-axes can accurately determine the position of each area on the lens, such as the specific distribution of the contact-optimized core area, the partitioned progressive microprism array area, etc. on the lens plane.

[0162] Figure 4 Figure 8 The simulation diagram in is described as follows:

[0163] Figure 4 The histogram generated from the microprism array tilt angle simulation shows the comparison between the initial tilt angle of the microprism array and the tilt angle after adjustment based on light intensity. The horizontal axis represents the adjustment status (initial angle and adjusted angle), and the vertical axis represents the tilt angle (unit: °), intuitively showing the angle change.

[0164] Figure 5 The histogram generated by the scattering intensity simulation of the dynamic light scattering area shows the comparison between the initial scattering coefficient and the adjusted scattering coefficient of the dynamic light scattering area. The horizontal axis is the adjustment state (initial coefficient and adjusted coefficient), and the vertical axis is the scattering coefficient. The change in scattering intensity can be clearly seen.

[0165] Figure 6 The histogram generated by the diopter adjustment simulation of the adaptive refractive compensation layer shows the comparison between the initial diopter and the adjusted diopter of the adaptive refractive compensation layer. The horizontal axis is the adjustment status (initial diopter and adjusted diopter), and the vertical axis is diopter (unit: D), which is convenient for observing the diopter adjustment.

[0166] Figure 7 The bar chart generated by the vibration frequency simulation of the micro-vibration stimulation layer shows the comparison between the initial vibration frequency of the micro-vibration stimulation layer and the vibration frequency after adjustment according to the eye temperature. The horizontal axis is the adjustment status (initial frequency and adjusted frequency), and the vertical axis is the vibration frequency (unit: Hz), which intuitively reflects the change in frequency.

[0167] Figure 8 The bar chart generated by the data collection simulation of the multimodal environmental perception system shows the collected intraocular pressure, temperature and humidity data. The horizontal axis is the data type (intraocular pressure, temperature, humidity), and the vertical axis is the corresponding numerical value (intraocular pressure unit: mmHg, temperature unit: ℃, humidity unit: %), presenting the data collected by the multimodal environmental perception system in a visual way.

[0168] Figure 15 The detailed analysis is as follows:

[0169] The Contact Optimization Core Area (CPA), located at the top of the image, is the key component of the lens that provides clear central vision. It has two main connections: one to the "Adaptive Refractive Compensation Layer," indicating its presence within the CPA Core Area. This layer, made of liquid crystal polymer, dynamically adjusts diopter based on the eye's refractive state, enabling personalized vision correction. The other to the "Photoelectric Feedback Control Module," indicating that the core area's functions are driven and regulated by the module.

[0170] The zoned progressive microprism array area is located below the contact optimization core area in the image, forming concentric rings around it. It is directly connected to the photoelectric feedback control module, meaning that the module dynamically adjusts parameters such as the tilt angle of the microprism units in this area based on factors such as ambient light intensity, thereby regulating the angle of incidence of peripheral light and reducing retinal overfocusing.

[0171] Dynamic Light Scattering Zone: Located on the right side of the image, at the outermost edge of the lens. Also connected to the "Photoelectric Feedback Control Module," this indicates that the scattering intensity of the Dynamic Light Scattering Zone is adjusted by the Photoelectric Feedback Control Module based on ambient light conditions. This light scattering effect softens peripheral light, aiding in myopia prevention and control.

[0172] The self-healing polymer substrate layer, located in the lower center of the image, is the integral substrate layer of the lens, extending through the thickness of the lens. It connects to the contact-optimized core area, the zoned progressive microprism array area, and the dynamic light scattering area, indicating that these areas are constructed on the self-healing polymer substrate layer. It also connects to the biomimetic hydrophobic coating, the stress-sensing adaptive layer, the micro-vibration stimulation layer, and the microfluidic cooling channels, demonstrating that the self-healing polymer substrate layer serves as the lens's foundational structure, providing support for all other layers and components.

[0173] Bionic hydrophobic coating: connected to the self-repairing polymer substrate layer and coated on the outer surface of the lens (the side away from the eyeball). Based on the nano-scale hydrophobic structure, it has super anti-fouling, self-cleaning and antibacterial functions.

[0174] The stress-sensing adaptive layer is an intermediate layer embedded in the self-healing polymer substrate, located near the eyeball. It is interconnected with the multimodal environmental sensing system. When conditions such as intraocular pressure and wear time change, the pressure sensors in the multimodal environmental sensing system detect the signal and feed it back to the stress-sensing adaptive layer, which dynamically adjusts the hardness and shape of the lens to improve wearing comfort.

[0175] Multimodal Environmental Perception System: Distributed across the inner surface and periphery of the lens, it includes temperature, humidity, and pressure sensors. Connected to both the stress-sensing adaptive layer and the micro-vibration stimulation layer, it senses environmental conditions and eye status, and collaborates with these layers to adjust lens performance. For example, detecting abnormal eye temperature or intraocular pressure triggers the micro-vibration stimulation layer to adjust vibration parameters.

[0176] The micro-vibration stimulation layer is located on the inner surface of the lens (the side closest to the eyeball), covering the entire area from the contact-optimized core area to the dynamic light scattering area. It is connected to the self-healing polymer substrate layer, the optoelectronic feedback control module, and the multimodal environmental perception system. This indicates that its operation depends not only on the basic structure of the lens but also on the control of the optoelectronic feedback control module and the multimodal environmental perception system. By generating weak vibrations, it promotes blood circulation in the eyes and relieves eye fatigue.

[0177] Photoelectric feedback control module: It is in a key control position in the figure. In addition to being connected to the contact optimization core area, the partitioned progressive microprism array area, and the dynamic light scattering area, it is also connected to the adaptive refractive compensation layer and the micro-vibration stimulation layer. It monitors the ambient light intensity and eye reflection signals in real time, dynamically adjusts the functions and parameters of various parts of the lens, and realizes adaptive optimization of optical performance.

[0178] A micro-energy harvesting and storage unit is installed adjacent to the photoelectric feedback control module in a specific area around the edge of the lens. It connects the photoelectric feedback control module and the micro-vibration stimulation layer, generating electricity from thermal energy from the eye and the mechanical energy of blinking to power both components, ensuring the lens operates normally without an external power source.

[0179] Microfluidic cooling channels: Located in a specific area on the edge of the lens, within the self-healing polymer substrate layer, they connect to the self-healing polymer substrate layer and utilize tear circulation to dissipate heat, thereby lowering the lens temperature and improving the wearing experience. Specific embodiment five:

[0181] like Figures 1-15 As shown, based on the technical solution of the specific embodiment 1, the following practical cases are further provided:

[0182] Case 1: Adolescent Myopia Prevention and Control and Learning Scenario

[0183] Background: Xiao Huang, 14 years old, myopia -3.5D, axial length 25.8mm, long study time (8 hours a day), frequent use of electronic devices, obvious eye fatigue, normal tear secretion.

[0184] Customization Process: Refraction and pupillary distance (62mm) were measured using a comprehensive ophthalmometer. OCT measured the axial length and corneal curvature (radius 7.8mm). A tonometer measured the average intraocular pressure at 14mmHg. An eye tracker recorded the eye movement rate while reading (30 times / minute). Based on this data, the radius of the contact optimization core area was adjusted to 2.0mm. The initial refractive power of the adaptive refractive compensation layer was set to -3.5D. The microprism array area angle increment range was set to 6°-14° to match the axial length of the eye. The dynamic light scattering area scattering coefficient range was 0.15-0.4 to adapt to indoor and outdoor lighting. The microvibration frequency was initially set to 25Hz, and the stress induction threshold was set to 15mmHg. Highly oxygen-permeable silicone material was used, and the biomimetic hydrophobic coating thickness was increased to 25nm to enhance anti-fouling properties.

[0185] Usage scenario: Xiao Huang wears the lenses to school every day. The core area provides clear vision when using electronic devices. The microprism and light scattering area soften the peripheral light to prevent myopia. The micro-vibration is increased to 40Hz when tired (eye temperature rises to 38°C) to relieve ciliary muscle tension. The photoelectric feedback module switches between classroom (500lux) and outdoor (5000lux) to adjust the optical parameters.

[0186] Effect: After wearing for one month, the axial length of the eye grew by only 0.01mm (0.03mm in the control group), the visual acuity stabilized at 20 / 20, the eye fatigue score dropped from 7 to 3, the subjective comfort level reached 95%, and there were no obvious scratches on the lens surface, thanks to the self-repair function.

[0187] Principle: Peripheral defocus design combined with dynamic light scattering slows down axial elongation, adaptive refraction corrects vision in real time, micro-vibration and stress sensing improve comfort, and self-healing and hydrophobic coating maintains durability.

[0188] Case 2: Adult white-collar workers working long hours

[0189] Background: Ms. Li, 28 years old, has myopia of -5.0D, intraocular pressure of 16mmHg, low tear secretion, works on the computer for 10 hours a day, frequently works overtime at night, and suffers from severe dry eyes and fatigue.

[0190] Customization process: Optometry confirmed a refractive power of -5.0D, OCT measured an axial length of 26.5mm, and a tear breakup time of 8 seconds. High-intensity eye use characteristics were recorded using a tonometer and eye tracker. The core radius was set to 2.2mm, the adaptive refractive compensation layer ranged from -4.8D to -5.2D, the microprism angle was 8°-15° to accommodate long axial lengths, the light scattering coefficient was 0.2-0.5 to accommodate low night light (10 lux), the stress sensing threshold was adjusted to 16mmHg, the microvibration started at 30Hz, the microfluidic cooling channel was designed to optimize tear circulation, a highly hydrophilic polyurethane substrate was selected, and an anti-desiccation agent was added to the hydrophobic coating.

[0191] Usage scenarios: The lenses provide clear vision for Ms. Li when she works during the day. Photoelectric feedback adjusts the scattering intensity to soften the light when she works overtime at night. Micro-vibration increases to 45Hz when the intraocular pressure rises to 18mmHg to relieve fatigue. The microfluidic channel reduces the lens temperature by 1.5℃, and multimodal perception records data to prompt rest.

[0192] Effect: After wearing for 2 weeks, the dry eye score dropped from 8 to 4, fatigue was reduced by 50%, the lens temperature was maintained below 36°C, vision was stable, the surface was clean (bacterial attachment rate 4%), and NFC synchronization data showed that the daily fatigue peak was reduced by 30%.

[0193] Principle: Adaptive refraction and photoelectric feedback ensure clear vision, micro-vibration and cooling channels relieve dryness and fatigue, hydrophobic coating and self-healing maintain hygiene and durability, and multimodal perception provides intelligent support.

[0194] Case 3: Outdoor sports enthusiasts scenario

[0195] Background: Mr. Zhang, 35 years old, myopia -2.0D, intraocular pressure 13mmHg, normal tear production, runs and rides outdoors for 6 hours a week, needs to adapt to the strong light and sweat environment, and has no obvious eye fatigue.

[0196] Customization process: Optometry measured -2.0D, OCT measured an axial length of 24.5mm, and an eye tracker showed large eye movements during exercise. The core radius is 1.8mm, with adaptive refraction settings ranging from -1.8D to -2.2D. The microprism angle is 5°-12° to accommodate short axial lengths. The light scattering coefficient is 0.1-0.45 to withstand strong light (5000 lux). The micro-vibration frequency is 20Hz, with a stress-sensing threshold of 14mmHg. The base material is a wear-resistant silicone, and the hydrophobic coating is 30nm thick to enhance sweat and stain resistance.

[0197] Usage scenario: The core area provides clear vision for Mr. Zhang when he runs. Photoelectric feedback adjusts scattering and microprism angles under strong light. The hydrophobic coating prevents sweat from adhering. Micro-vibration slightly promotes circulation. Microfluidic channels dissipate heat to maintain comfort.

[0198] Results: After one month of wear, vision remained stable at 20 / 20, with no eye axis growth, no stains on the lens surface (roll angle 7°), a comfort rating of 90%, energy harvesting supporting all-day operation, and stored data showing a 40% improvement in light adaptability.

[0199] Principle: Photoelectric feedback and optical design adapt to strong light, hydrophobic coating and self-repair cope with sweat wear, self-powered and micro-vibration ensure stability for outdoor use.

[0200] Case 4: Mild myopia correction and eye health maintenance for elderly users

[0201] Background: Grandma Wang, 60 years old, myopia -1.0D, intraocular pressure 15mmHg, decreased tear secretion, daily reading and walking, need comfort and eye protection.

[0202] Customization process: Optometry measured -1.0D, OCT measured axial length 23.8mm, tear film breakup time 6 seconds. Core radius 2.0mm, adaptive refraction set to -0.8D to -1.2D, microprism angle 5°-10° with mild defocus, light scattering coefficient 0.1-0.3 adapted to room light, stress induction threshold 15mmHg, microvibration 25Hz optimized cycle, highly hydrophilic polyurethane substrate, hydrophobic coating thickened to 25nm.

[0203] Usage scenario: Grandma Wang corrects her vision in the core area when reading, light scattering and microprisms protect the eye axis, micro-vibration and stress sensing adjust after 6 hours of wearing to relieve fatigue, and microfluidic channels and hydrophobic coating reduce dryness.

[0204] Results: After wearing the lenses for 3 weeks, vision improved to 20 / 25, eye fatigue score dropped from 5 to 2, lens wettability increased by 30%, surface scratches disappeared, intraocular pressure stabilized, and comfort level reached 93%.

[0205] Principle: Mild defocus and adaptive refraction meet the vision needs of the elderly, micro-vibration and cooling improve tear deficiency, and material design prolongs wearing comfort. Specific embodiment six:

[0207] like Figures 1-15 As shown, the following are the core mathematical formulas of each algorithm and the corresponding explanations and descriptions:

[0208] Layered weight adaptive model formula:

[0209]

[0210]

[0211]

[0212] Variable Description:

[0213] : time The weight vector contains the weights of each modality data (such as intraocular pressure, temperature, humidity, light intensity, blink frequency) . : Multimodal data vector collected in real time, The number of data types (such as 5 types: intraocular pressure, temperature, humidity, light, blinking frequency). : Control parameter vector, including microprism tilt angle, scattering intensity, hardness, vibration frequency, refractive power, etc. : Usage scenario (e.g., children's myopia prevention and control, adult reading), represented by discrete values (e.g., 1 = children, 2 = adults). : User age category (e.g., children < 18, adults ≥ 18). : Loss function, measuring data and control parameters matching (such as the effect of reduced hardness when intraocular pressure is abnormal). : Scene and age-related initial weights (e.g. children: IOP 0.4, light 0.5). : Regularization parameter that controls weight smoothness (e.g. 0.01). : Regularization term (such as L2 norm, to prevent weight overfitting. : A control function that maps weighted data to parameter adjustments (such as a linear map or decision tree).

[0214] Time series prediction formula:

[0215]

[0216]

[0217] Variable Description:

[0218] : Prediction results, including eye fatigue index for the next 30 minutes and refractive changes . : Input feature vector, containing current multimodal data (Intraocular pressure, temperature, etc.), the previous moment control parameters (hardness, vibration frequency, etc.), historical data (Average intraocular pressure over the past hour, etc.). : Prediction models, based on weighted moving average or long short-term memory (LSTM) networks. : Sub-model, processing historical features . : Time decay weight, recent data has higher weight (e.g. , , ). : Model parameters, trained through historical data. : The length of the time window (e.g. 3, meaning the past 3 minutes). : Forecast time horizon (30 minutes).

[0219] Dynamic Priority Algorithm (Energy Harvesting Optimization) Formula:

[0220]

[0221]

[0222] Variable Description:

[0223] : Total energy output at time t, in microwatts. : Potential output of the jth energy harvesting method (light energy, thermal energy, piezoelectric energy), for example, 2 microwatts for light energy and 1.5 microwatts for thermal energy. : The allocation ratio of the jth method satisfies the normalization constraint. : Utility function, based on ambient light intensity and blink frequency ,For example (light energy), (Piezoelectric). : Tuning parameter to control the allocation sensitivity (e.g. 1.0). : Number of energy harvesting methods (3 types: light energy, thermal energy, and piezoelectricity). Specific embodiment seven:

[0225] like Figures 1-15 As shown, the following are the specific application logic of each algorithm and each module, as well as the detailed hardware composition and hardware description of each module:

[0226] Multimodal dynamic optimization algorithm:

[0227] Application Logic: A multimodal dynamic optimization algorithm is the system's core control logic, integrating multimodal data (ambient light intensity, intraocular pressure, temperature, humidity, blink rate, and historical wear data) to generate personalized control instructions. This algorithm adjusts the microprism tilt angle, scattering intensity, lens hardness, vibration frequency, and diopter to prevent and control myopia, alleviate visual fatigue, and optimize wearer comfort. The algorithm is divided into two submodules: the first is a hierarchical weighted adaptive model that dynamically assigns data weights based on user age (children <18 years old, adults ≥18 years old) and usage scenario (reading, outdoor, and electronic screen use). For example, for children's myopia prevention and control scenarios, IOP (weight 0.4) and light intensity (0.5) are prioritized, while for adult reading scenarios, humidity (0.35) and blink rate (0.35) are prioritized. These weights are updated every minute and optimized by minimizing a loss function (which measures the fit between the data and the control parameters). For example, when IOP exceeds 15 mmHg, the algorithm increases the IOP weight to 0.45, triggering the stress-sensing adaptive layer to reduce hardness by 10-15% and increase the frequency of the microvibration stimulation layer to 55 Hz. The application logic involves real-time data collection → weight calculation → mapping to control parameters. For example, when humidity is <30%, the algorithm prioritizes adjusting the vibration frequency to 50-60Hz to alleviate dry eye symptoms. The second is time series prediction: it predicts the eye fatigue index (based on intraocular pressure, blink rate, and wear time) and refractive error (based on pupil reflex and light intensity) over the next 30 minutes, allowing for proactive parameter adjustments to prevent retinal overfocusing. If the predicted fatigue index exceeds 0.8 (high fatigue), the algorithm preemptively adjusts the microprism angle to 8°-12°, increases the scattering particle density to 1000-1500 particles / mm², and raises the vibration frequency to 55-65Hz for 15 minutes per hour. The prediction model runs every minute, combining real-time and historical data (average over the past hour) to ensure proactive control. For example, if a predicted refractive error exceeds 0.5D (risk of worsening myopia), the adaptive refractive compensation layer adds 0.25D of compensation.

[0228] Hardware composition and description:

[0229] Micro Central Processing Unit: This core hardware is responsible for running the multimodal dynamic optimization algorithm. It is a 32-bit ARM Cortex-M0+-based microcontroller (MCU), clocked at 16MHz, with 8KB of SRAM and 16KB of Flash memory, and consumes 0.3µW / MHz. It supports low-power modes (<0.1µW in sleep mode) and communicates with sensors, storage units, and control modules via I2C and SPI interfaces. The MCU also includes a built-in fixed-point arithmetic unit (FPU) to optimize weight calculation and predictive model operation for low power consumption. Measuring 1mm x 1mm, it is embedded within a 4.5-5.5mm radial area around the lens edge and encapsulated in biocompatible silicone for tear fluid resistance.

[0230] Micro-storage Unit: Stores real-time and historical data (1-5KB capacity), providing training and feedback for the algorithm. The hardware is a NOR Flash memory chip, measuring 0.8mm × 0.8mm, consuming 0.05 microwatts, and with a read / write speed of 10kbps. It supports data priority storage (60% of the space is allocated for abnormal intraocular pressure and temperatures >38°C), uses 2:1 lossless compression, and overwrites non-critical data after 7 days. It is embedded in the edge of the lens and communicates with the MCU via an SPI interface.

[0231] Communication Interface: This interface supports synchronization of algorithm results with external devices. The hardware is a Near Field Communication (NFC) module, measuring 0.5mm x 0.5mm, consuming 0.1 microwatts, and supporting the Bluetooth Low Energy (BLE) protocol with a transmission rate of 10kbps. Embedded in the edge of the lens, it synchronizes algorithm-generated health reports (intraocular pressure, fatigue index) to a smartphone or cloud-based medical platform.

[0232] Problem solving and methods:

[0233] Personalized Control: The algorithm uses a weighted model to adapt to the needs of children (prioritizing intraocular pressure and light) and adults (prioritizing humidity and blinking). For example, in children's scenarios, increased intraocular pressure triggers a decrease in hardness and an increase in vibration frequency, while in adult reading scenarios, low humidity triggers dry eye relief.

[0234] Retinal overfocus: Time series prediction adjusts the microprism angle and scattering intensity in advance to enhance the peripheral defocus effect and reduce the risk of worsening myopia.

[0235] Visual fatigue and comfort: Increase vibration frequency when high fatigue is predicted, reduce hardness when humidity is low, and optimize the wearing experience.

[0236] Method: The weights are updated every minute (gradient descent, computational complexity O(5)). The prediction model uses a weighted moving average (time window of 3 minutes, attenuation weights of 0.5, 0.3, and 0.2). Control instructions are issued in real time through the MCU, with a response time of <0.1 seconds.

[0237] Algorithm: Dynamic Priority Algorithm (Energy Harvesting Optimization)

[0238] Application Logic: A dynamic priority algorithm optimizes energy allocation to the micro-energy harvesting and storage unit, ensuring continuous power to modules such as the optoelectronic feedback control module and the micro-vibration stimulation layer (output power 1-5 microwatts). The algorithm dynamically adjusts the ratio of light, thermal, and piezoelectric energy based on ambient light intensity. The logic includes: collecting light and blink data → calculating the utility of each collection method → allocating the ratios using a softmax function → adjusting energy output. The algorithm runs once a minute to optimize total energy output, storing excess energy in a supercapacitor (20-50 microjoules). Application scenarios include ensuring the operation of the vibration layer at night and supporting high-frequency sensor sampling during the day.

[0239] Hardware composition and description:

[0240] Micro-CPU: Same as above, runs a dynamic priority algorithm, consumes 0.3 μW / MHz, and measures 1 mm × 1 mm. The algorithm implements softmax via fixed-point operations, has a computational complexity of O(3), and updates the ratio once per minute. Light energy conversion film: Based on organic photovoltaic (OPV) material, measures 2 mm × 2 mm, is 10 μm thick, and is embedded in the outer surface of the lens (away from the eyeball). It has a conversion efficiency of 10%, outputs 2 μW at 1000 lux, and consumes 0.01 μW. It is tear-resistant and highly biocompatible. Thermoelectric conversion film: Based on bismuth telluride (Bi2Te3) thermoelectric power generation material, measures 1.5 mm × 1.5 mm, is 8 μm thick, and is embedded in the inner surface of the lens (close to the eyeball). It utilizes eye heat (temperature difference of 2-3°C) to output 1.5 μW, and consumes 0.01 μW. It is encapsulated in silicone for moisture and corrosion resistance. Piezoelectric film: This piezoelectric film, based on polyvinylidene fluoride (PVDF), measures 1.5mm x 1.5mm and is 5 microns thick. It is embedded within the lens. It harnesses the mechanical energy of blinking (at a frequency of 10-20 times per minute) to generate 1 microwatt output, with a power consumption of 0.005 microwatts. Its flexible design adapts to the curvature of the lens. A supercapacitor: This supercapacitor stores energy, with a capacity of 20-50 microjoules. It measures 0.8mm x 0.8mm and is 10 microns thick. It is embedded within the edge of the lens. It boasts a charging efficiency of 95%, a leakage rate of <0.01 microwatts, and a durability of >100,000 charge and discharge cycles. It supports the sudden demands of high-power modules (such as the vibration layer).

[0241] Problem solving and methods:

[0242] Insufficient energy: Ensure 1-5 microwatts of continuous power supply to support sensors and control modules.

[0243] Scene changes: The energy collection efficiency varies greatly between low light at night and high light during the day.

[0244] Methodology: An algorithm calculates utility using light intensity (provided by a sensor) and blink rate (estimated by a pressure sensor), allocating 0.4% thermal energy and 0.3% piezoelectric energy at night, and 0.6% light energy during the day. Energy output is monitored in real time, and excess energy is stored.

[0245] Module 1: Contact Optimization Core Area

[0246] Application Logic: The contact-optimized core area (radius 1.8-2.2mm) is located at the geometric center of the lens, providing clear central vision suitable for tasks such as reading and screen use. It also includes an adaptive refractive compensation layer that dynamically adjusts diopter (in 0.25D increments) based on the eye's refractive state to accommodate nearsightedness or farsightedness. The logic involves: a photoelectric feedback control module detects pupillary reflex signals, an algorithm analyzes refractive demand, and then the refractive compensation layer adjusts. For example, if refractive deficiency is detected during close reading, 0.25D of compensation is added to alleviate eye fatigue.

[0247] Hardware composition and description:

[0248] Substrate: Self-healing polyurethane + silicone, 100 micron thickness, 4.4 mm diameter, refractive index 1.43, >95% transmittance. Supports self-healing (micro-scratches heal within 24 hours) and is highly biocompatible.

[0249] Adaptive refractive compensation layer: A liquid crystal polymer (LCP) film, 4mm x 4mm in size and 20 microns thick, is embedded in the substrate near the eyeball. The refractive index is adjusted (range: 1.5-1.7) through electrically controlled deformation, achieving a refractive index range of -6D to +6D. The drive voltage is 1-2V, power consumption is 0.05 microwatts, and the response time is <0.05 seconds. It is controlled by a microelectrode array (100 x 100 grid) and is tear-resistant.

[0250] Module 2: Partitioned Progressive Microprism Array Area

[0251] Application Logic: Located outside the core area (in concentric rings), radially arranged microprism units (10-50 microns in height, tilted 5°-15°) achieve peripheral defocus, softening peripheral light and preventing myopia. A photoelectric feedback control module dynamically adjusts the tilt angle based on light intensity, for example, to 10°-15° for natural light (1000 lux) and 5°-10° for artificial light (200 lux). The algorithm prioritizes light weight (0.5 for children) to ensure optimal defocus. The logic includes: light data collection → algorithmic angle calculation → microprism adjustment.

[0252] Hardware composition and description:

[0253] Microprism units: Made of polymethyl methacrylate (PMMA), 10-50 microns in height, with a base area of 50 microns x 50 microns and a density of 1000 per square millimeter. Utilizing micro-nanofabrication techniques (photolithography + etching), the unit achieves a transmittance of >90%. Each of the four groups of regions is tilted by a micro-electric actuator, operating at a 1V drive voltage and 0.02 microwatts of power. The actuators are MEMS (microelectromechanical systems)-based piezoelectric actuators, measuring 0.1mm x 0.1mm, embedded in the microprism base. They support continuous adjustment from 5° to 15°, with a response time of <0.05 seconds and a power consumption of 0.01 microwatts per unit.

[0254] Module 3: Dynamic Light Scattering Area

[0255] Application Logic: Located at the outermost edge of the lens (radially 4.0-5.5 mm), micron-sized scattering particles (1-5 microns in diameter, density 1000-1500 particles / mm²) soften peripheral light, assisting in myopia prevention and control. A photoelectric feedback control module adjusts the scattering intensity based on light variations, for example, increasing intensity by 15% under artificial light. The algorithm prioritizes light intensity, with a higher density (1500 particles / mm²) for children. The logic involves: light data collection → algorithm calculation of scattering intensity → particle distribution adjustment.

[0256] Hardware composition and description:

[0257] Scattering particles: Silicon dioxide (SiO2) nanoparticles, 1-5 microns in diameter, embedded in the surface of the polysiloxane substrate. Density is adjusted via an electrically controlled liquid crystal layer, ranging from 500-1500 particles / mm². Transmittance >85%, scattering angle 10°-30°. Drive voltage 1V, power consumption 0.03 μW. Liquid crystal control layer: Nematic liquid crystal film, 10 microns thick, 3 mm x 3 mm, embedded in the scattering zone surface. An electric field is used to adjust the particle alignment and control the scattering intensity. Response time <0.05 seconds, power consumption 0.02 μW.

[0258] Module 4: Adaptive Refractive Compensation Layer

[0259] Application Logic: Embedded in the contact optimization core area, it dynamically adjusts diopter (-6D to +6D, in 0.25D increments) to accommodate myopia, hyperopia, or dynamic refractive changes. The photoelectric feedback control module detects pupillary reflex signals, and an algorithm analyzes refractive demand (once per second) to trigger adjustments. For example, it adds 0.5D of compensation for close-up use. The logic includes: pupil data collection → algorithmic calculation of diopter → driving LCD deformation.

[0260] Hardware composition and description:

[0261] Liquid crystal polymer film: Same as above, 4 mm × 4 mm, 20 μm thick, refractive index 1.5-1.7. Microelectrode array (100 × 100) controls local deformation, power consumption 0.05 μW.

[0262] Drive circuit: A CMOS-based, miniature voltage controller, measuring 0.5mm x 0.5mm, is embedded in the edge of the lens. It outputs 1-2V, consumes 0.02µW, and supports precise stepping control.

[0263] Module 5: Stress-Sensing Adaptive Layer

[0264] Application Logic: Embedded within the lens, it dynamically adjusts hardness (50 Shore A to 30 Shore A) and shape (fine-tuning 0.1-0.3 mm), reducing corneal pressure (5-10%). A multimodal environmental perception system monitors intraocular pressure (>15 mmHg) and wear time (>6 hours), triggering algorithmic adjustments. For example, when intraocular pressure rises, hardness is reduced by 10-15%, while when humidity is <30%, vibration frequency is increased. The logic includes: collecting intraocular pressure data → algorithmically calculating hardness → driving polymer deformation.

[0265] Hardware composition and description:

[0266] Stress-sensitive polymer: Polyurethane-based electroactive polymer (EAP), 30 microns thick and 5 mm x 5 mm in size. Hardness is modulated by an electric field (1-2 V), and shape is fine-tuned using a microelectrode array (50 x 50). Power consumption is 0.04 microwatts, and response time is <0.1 second.

[0267] Electrode array: Transparent ITO (indium tin oxide) electrodes, 0.05 mm × 0.05 mm per cell, embedded in a polymer layer. Supports localized deformation, with a power consumption of 0.01 μW per cell.

[0268] Module 6: Micro-vibration stimulation layer

[0269] Application Logic: Covering the inner surface of the lens, the piezoelectric material generates vibrations (40-65Hz) to relax the ciliary muscle and relieve eye fatigue. The multimodal environmental perception system detects temperature (>38°C), humidity (<30%), and abnormal intraocular pressure. The algorithm then selects the vibration mode (pulse or continuous). For example, pulse vibration (55-65Hz, 0.5-second intervals) is used for children, while continuous vibration (45-55Hz) is used for adults. The logic includes: collecting environmental data → algorithm selecting the mode → driving vibration.

[0270] Hardware composition and description:

[0271] Piezoelectric material: PVDF film, 10 microns thick, 5 mm x 5 mm in size, embedded in the inner surface of the lens. Supports 40-65 Hz vibration, 1V drive voltage, and 0.05 microwatt power consumption. Flexible design, tear-resistant.

[0272] Drive circuit: A MEMS-based oscillator controller, measuring 0.5mm x 0.5mm, is embedded in the edge of the lens. It supports both pulsed and continuous modes and consumes 0.02 microwatts.

[0273] Module 7: Photoelectric feedback control module

[0274] Application Logic: Monitors ambient light intensity and eye reflection signals (pupil size 1-8 mm) to dynamically adjust the microprism angle and scattering intensity. The algorithm prioritizes light weight (0.5 for children), with an angle of 10°-15° under natural light and 5°-10° under artificial light. The logic includes: collecting light and pupil data → algorithmically calculating and adjusting parameters → driving the microprism and scattering area.

[0275] Hardware composition and description:

[0276] Micro-light sensor: A silicon photodiode, 0.3mm x 0.3mm, embedded in the dynamic light scattering area. Detection range: 10-5000 lux, pupil reflex sensitivity: 0.1mm, sampling rate: 10 times per second, power consumption: 0.03 μW. Control unit: An ASIC-based signal processor, 0.5mm x 0.5mm, embedded in the edge of the lens. Processes light sensor data and outputs control signals, power consumption: 0.02 μW.

[0277] Module 8: Multimodal Environmental Perception Systems

[0278] Application Logic: Temperature, humidity, and pressure sensors collect eye status data (temperature > 38°C, humidity < 30%, intraocular pressure > 15 mmHg) to drive refractive compensation, vibration, and hardness adjustment. The algorithm integrates this data, prioritizing key signals (e.g., a child's intraocular pressure of 0.4). The logic involves: data collection (5 times per second) → algorithm analysis → triggering and controlling. For example, when humidity is low, the vibration frequency is increased and the hardness is reduced.

[0279] Hardware composition and description:

[0280] Temperature sensor: Thermistor, 0.2 mm × 0.2 mm, embedded in the inner surface of the lens. Measurement range: 35-40°C, accuracy: ±0.1°C, power consumption: 0.01 μW. Humidity sensor: Capacitive hygrometer, 0.2 mm × 0.2 mm, embedded in the inner surface. Measurement range: 20-80%, accuracy: ±2%, power consumption: 0.01 μW. Pressure sensor: MEMS piezoresistive sensor, 0.3 mm × 0.3 mm, embedded in the stress-sensing adaptive layer. Measurement range: 10-20 mmHg, accuracy: ±0.5 mmHg, power consumption: 0.02 μW. Signal processor: Shared with the MCU, processes sensor data, power consumption: 0.02 μW.

[0281] Module 9: Micro Energy Harvesting and Storage Units

[0282] Application Logic: Generates power using light, heat, and piezoelectric energy, using a dynamic priority algorithm to optimize allocation (70% thermal + piezoelectric at night, 60% light during the day), ensuring a 1-5 microwatt output. Excess energy is stored in supercapacitors to support high-power modules. The logic includes: collecting light and blink data → algorithmically allocating the allocation ratio → adjusting power generation.

[0283] Hardware composition and description: Same as the dynamic priority algorithm part (light energy conversion film, thermoelectric conversion film, piezoelectric film, supercapacitor).

[0284] Module 10: Micro Fault Detection Module

[0285] Application Logic: Real-time monitoring of sensor and control module status. When a failure is detected, the system switches to a historical data-driven backup mode (maintaining the microprism angle and scattering intensity). Warnings (including fault type and timestamp) are sent via NFC. The logic includes: hardware status monitoring → anomaly detection → mode switching → warning sending.

[0286] Hardware composition and description:

[0287] Monitoring circuit: A comparator-based status detector, measuring 0.4mm x 0.4mm, embedded in the edge of the lens. It monitors voltage and current anomalies and consumes 0.01 microwatts. NFC module: Same as above, sends a warning signal and consumes 0.1 microwatts.

[0288] Module 11: Micro Storage Units

[0289] Application Logic: Stores real-time and historical data (1-5KB), supporting algorithm training and data synchronization. Prioritizes critical data (intraocular pressure abnormalities, temperature >38°C), uses 2:1 compression, and overwrites old data after 7 days. Synchronizes to external devices via NFC. The logic includes: data collection → compressed storage → periodic synchronization.

[0290] Hardware composition and description: Same as the multimodal dynamic optimization algorithm part (NOR Flash chip, NFC module).

[0291] Module 12: Tear circulation heat dissipation structure

[0292] Application Logic: Micron-scale channels (5-10 microns in diameter, density 100-200 per square millimeter) utilize tear circulation to dissipate heat, reducing lens temperature by 2-3°C (maintaining 36-38°C). A multimodal environmental perception system monitors temperature (once per second), and algorithms optimize heat dissipation efficiency. The logic involves: temperature monitoring → adjusting tear flow → temperature reduction.

[0293] Hardware composition and description:

[0294] Micron-scale channels: Hydrophilic polysiloxane material, 5-10 microns in diameter, embedded in the edge of the lens. Laser micromachining technology is used to achieve flow resistance <0.1 Pa and a heat dissipation efficiency of 2-3°C. Temperature sensor: Same as above, monitors heat dissipation.

[0295] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the statement "comprising a reference structure" does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0296] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A contact lens with peripheral defocus, comprising a lens (4), characterized in that: The lens (4) comprises a contact optimization core area (1), a partitioned progressive microprism array area (2) and a dynamic light scattering area (3), and is specifically configured as follows: The contact optimization core area (1) is located at the geometric center of the lens (4) and extends outward with a radius of 1.8-2.2 mm, providing clear central vision; The partitioned progressive microprism array area (2) is located outside the contact optimization core area (1), surrounds the contact optimization core area (1) in a concentric ring shape, and is provided with radially arranged microprism units, each microprism unit has a height of 10-50 microns, and the tilt angle changes gradually along the radial direction; The dynamic light scattering zone (3) is located at the outermost edge of the lens, extending from 4.0 mm to 5.5 mm in radial direction, and uses micron-sized scattering particles embedded in the surface structure of the lens (4) to soften peripheral light through the light scattering effect, thereby assisting in the prevention and control of myopia; The contact optimization core area (1) is provided with an adaptive refractive compensation layer, which is embedded in the lens (4) near the eyeball and made of liquid crystal polymer material, and dynamically adjusts the refractive power according to the refractive state of the eyeball; The exterior of the lens (4) is clamped with an outer lens ring (5).

2. A contact lens with peripheral defocus according to claim 1, characterized in that: The lens (4) also includes auxiliary materials, and the auxiliary materials are specifically configured as follows: A self-repairing polymer substrate layer, which is the entire substrate layer of the lens (4), extends through the thickness of the lens (4), and is made of polyurethane and silicone materials with self-repairing functions; A biomimetic hydrophobic coating applied to the outer surface of the lens (4), that is, the side facing away from the eyeball; A stress-sensing adaptive layer is embedded in the lens (4) and is located in the middle layer of the self-repairing polymer substrate layer on the side close to the eyeball. The stress-sensitive polymer is used to dynamically adjust the hardness and shape of the lens (4) according to the intraocular pressure and wearing time. A micro-vibration stimulation layer is located on the inner surface of the lens (4), that is, the side close to the eyeball, covers the entire area from the contact optimization core area (1) to the dynamic light scattering area (3), and contains micro piezoelectric material; A photoelectric feedback control module is installed in a radial 4.5-5.5 mm area at the edge of the lens (4), and integrates a micro light sensor and a control unit. The micro light sensor is embedded in the surface of the dynamic light scattering area (3), and the control unit is embedded in the interior of the lens (4). The module monitors the ambient light intensity and eye reflection signals in real time and dynamically adjusts the deflection angle of the partitioned progressive micro prism array area (2) and the scattering intensity of the dynamic light scattering area (3); A micro energy collection and storage unit is installed in a radial 4.5-5.5 mm area on the edge of the lens (4), adjacent to the photoelectric feedback control module, and includes a thermoelectric conversion film and a piezoelectric film. The thermoelectric conversion film is embedded in the inner surface of the lens (4) close to the eyeball, and the piezoelectric film is embedded in the interior of the lens (4). The unit generates electricity using thermal energy from the eye and mechanical energy from blinking to power the micro-vibration stimulation layer and the photoelectric feedback control module. A multimodal environmental perception system is distributed and installed on the inner surface and edge area of the lens (4), including a temperature sensor, a humidity sensor, and a pressure sensor, wherein the temperature sensor and the humidity sensor are embedded in the inner surface of the lens (4) close to the eyeball, and the pressure sensor is embedded in the stress sensing adaptive layer, which can sense environmental conditions and eye status, and coordinate with the stress sensing adaptive layer and the micro-vibration stimulation layer to adjust the performance of the lens (4); The radial 4.5-5.5 mm region of the edge of the lens (4) is located inside the self-repairing polymer substrate layer and adopts a micron-scale channel structure to utilize tear circulation to dissipate heat and reduce the temperature of the lens (4).

3. The contact lens with peripheral defocus according to claim 2, characterized in that: The microprism units of the partitioned progressive microprism array area (2) are divided into four groups of areas, and the tilt angle of each group of areas increases in the range of 5°-15°. The photoelectric feedback control module dynamically adjusts the microprism tilt angle according to the light intensity detected by the light sensor to optimize the peripheral light deflection effect.

4. The contact lens with peripheral defocus according to claim 2, wherein: The diameter of the micron-scale scattering particles in the dynamic light scattering zone (3) is 1-5 microns, and the particle density increases radially. The photoelectric feedback control module adjusts the scattering intensity according to the change of ambient light, so as to soften the peripheral light and reduce the over-focusing of the retina.

5. The contact lens with peripheral defocus according to claim 2, wherein: The bionic hydrophobic coating uses nano-silicon and fluoride materials, the water droplet rolling angle on the surface is less than 10 degrees, and the antibacterial effect is enhanced by ultraviolet irradiation.

6. The contact lens with peripheral defocus according to claim 2, wherein: When the intraocular pressure of the stress-sensing adaptive layer exceeds 15 mmHg and the wearing time exceeds 6 hours, the hardness of the lens (4) decreases and the corneal pressure is reduced by fine-tuning the shape.

7. The contact lens with peripheral defocus according to claim 2, characterized in that: The micro-vibration stimulation layer is linked to the multimodal environmental perception system. When the temperature sensor detects that the eye temperature is higher than 38°C and the pressure sensor detects abnormal intraocular pressure, the vibration frequency is increased to 40-50Hz and the vibration time is extended to 10 minutes per hour to enhance the relaxation effect of the ciliary muscle.

8. The contact lens with peripheral defocus according to claim 2, wherein: The micro light sensor of the photoelectric feedback control module has a sampling frequency of 10 times per second and a response time of less than 0.1 second. The output power of the micro energy collection and storage unit is 1-5 microwatts and the storage capacity is 10-20 microjoules.

9. The contact lens with peripheral defocus according to claim 2, wherein: The multimodal environment perception system collects data through a temperature sensor, a humidity sensor and a pressure sensor, and further includes a micro storage unit with a capacity of 1-5KB, embedded in the radial 4.5-5.5 mm area of the edge of the lens (4), recording the wearing time, light intensity changes and intraocular pressure data, and synchronizing with external devices through near-field communication.

10. The contact lens with peripheral defocus according to claim 2, characterized in that: The lens (4) further includes the following system innovation settings: The lens (4) has a built-in micro central processing unit located in the radial 4.5-5.5 mm area, which is electrically connected to the photoelectric feedback control module, the multimodal environmental perception system and the micro-vibration stimulation layer, and integrates a multimodal dynamic optimization algorithm. The algorithm integrates the real-time collected ambient light, intraocular pressure, temperature, humidity, blink frequency data and historical wearing data through a hierarchical weight adaptive model, dynamically allocates data weights according to the user's age and usage scenario, combines time series analysis to predict eye fatigue and refractive change trends, and adjusts the microprism tilt angle, scattering intensity, lens hardness, vibration frequency and refractive power in advance to form a closed-loop predictive control system; The multimodal environmental perception system supports the Bluetooth low energy protocol through a near-field communication module, synchronizes eye status data with external smart devices and cloud medical platforms in real time, generates health reports and remote doctor advice, and supports dynamic parameter adjustment; The adaptive refractive compensation layer uses liquid crystal polymer electrical deformation to support 0.25D step diopter adjustment. Combined with the stress-sensing adaptive layer, it reduces hardness and increases vibration frequency to 50-60Hz when eye humidity is below 30% and the wearing time exceeds 8 hours, thereby alleviating dry eye symptoms. The micro energy harvesting and storage unit integrates a light energy conversion film, a thermoelectric conversion film, and a piezoelectric film to generate electricity using ambient light, eye heat, and the mechanical energy of blinking. It has an output power of 1-5 microwatts and a storage capacity of 20-50 microjoules, and dynamically allocates energy through a low-power optimization algorithm. The lens (4) has a built-in micro fault detection module that monitors the status of the sensor and control module in real time and sends a warning signal via near-field communication when an abnormality occurs; The self-repairing polymer substrate layer and biomimetic hydrophobic coating are made of biocompatible materials to ensure optical performance and self-repair function for 12 months of continuous wear; The lens (4) supports modular upgrades and integrates additional sensors and augmented reality display modules through embedded micro interfaces to expand health monitoring and intelligent interaction functions.

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