Myopia reversal treatment device based on composite optical adjustment and biological stimulation synergy

Abstract

The present application relates to myopia treatment technical field, especially to a kind of based on the synergistic effect of composite optical regulation and biological stimulation myopia reversal treatment device.The device includes the synergistic operation between adjustable optical training module, micro-current stimulation module and intelligent control system, wherein the adjustable optical training module is by the dynamic defocus design of the region corresponding to double lens, to synchronously drive adjustment corresponding diopter difference range, and guide ciliary muscle to carry out focusing-relaxing alternate training;The micro-current stimulation module can output adjustable pulse current, and synchronously integrate PID temperature control system to maintain hot compress temperature;The intelligent control system is to real-time analysis eye axial length, corneal curvature and adjustment lag, dynamically optimizes the corresponding parameters of the adjustable optical training module and the micro-current stimulation module, to realize the precise regulation and control of individualized myopia reversal treatment scheme.The present application can realize the effective reversal and prevention and control of myopia.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of myopia treatment, and in particular to a myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biological stimulation. BACKGROUND

[0002] Myopia is a common refractive error disease worldwide, especially in the adolescent population. With the universality of long-time close eye use in modern society, the incidence and development of myopia show a trend of increasing year by year. Myopia not only affects vision, but also can cause retinal detachment, cataract, glaucoma and other eye complications, which brings long-term health risks to patients. Therefore, the prevention and treatment of myopia has always been the focus of ophthalmic research. In recent years, the synergistic treatment method based on optical adjustment and biological stimulation has gradually attracted the attention of the academic community. Composite optical adjustment changes the growth of the eye axis by adjusting the focus of the eye optical system, thereby effectively controlling the deepening of myopia. Optical treatment methods such as bifocal lenses and night ortho-K have been applied in clinical practice and can delay the progression of myopia to a certain extent. However, these optical adjustment methods cannot completely reverse the formed myopia, on the other hand, biological stimulation technology (such as low-intensity laser, bioelectric stimulation, etc.) also shows certain effect in clinical treatment, but the current biological stimulation technology is mainly used for auxiliary treatment, and its single effect is still limited. SUMMARY

[0003] Therefore, it is necessary to provide a myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biological stimulation to solve at least one of the above technical problems.

[0004] To achieve the above-mentioned purpose, a myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biological stimulation, comprising the synergistic operation among an adjustable optical training module, a micro-current stimulation module and an intelligent control system, wherein,

[0005] The adjustable optical training module is designed by dynamically defocusing the regions corresponding to the double lenses, including a central correction zone and a peripheral defocus zone. The central correction zone adopts a spherical lens, and the peripheral defocus zone adopts a non-spherical ring design to synchronously drive and adjust the refractive power difference between the central correction zone and the peripheral defocus zone in the range of +1.50D to -4.00D. At the same time, the double lenses are driven by a stepping motor to reciprocate in the range of 28-35cm with a frequency of 0.5-3Hz and a moving accuracy of ±0.1mm, and the ciliary muscle is guided to perform focus-relaxation alternating training to simulate the dynamic adjustment load of 5-20D when viewing objects naturally, so that the corresponding elastic modulus of the ciliary muscle is reduced by ≥25%.

[0006] The micro-current stimulation module comprises a 16-point flexible electrode array, wherein each flexible electrode has a diameter of 3 mm and a pitch of 5 mm, so as to accurately cover 8 pairs of orbital acupoints corresponding to Qingming, Zanzhu, Yuliuzi, Situzhong, Taiyang, Chengqi, Sibai and Houqiu, and can output a pulse current of 0.5-2 mA and a frequency of 1-100 Hz, and a PID temperature control system is integrated synchronously to maintain a hot compress temperature of 38-42°C.

[0007] The intelligent control system is internally provided with an OCT eye axis monitoring unit and a machine learning processor, so as to analyze the eye axis length, corneal curvature and accommodation lag in real time, dynamically optimize the frequency, distance and refractive power difference between the two lenses in the adjustable optical training module and the pulse current and hot compress temperature of the micro-current stimulation module, and thus realize accurate regulation and control of the individualized myopia reversal treatment scheme.

[0008] Further, the adjustable optical training module further comprises:

[0009] A double-zone linkage mechanism is used to realize synchronous translation of the refractive power difference between the corresponding lenses in the central correction zone and the peripheral defocus zone through magnetic coupling, wherein the refractive power difference is specifically , wherein represents an accommodation coefficient, specifically 0.8-1.2, represents a real-time lens movement distance, represents a lens initial distance;

[0010] Dynamic blur control, when the lens accommodation lag between the central correction zone and the peripheral defocus zone is detected to be >0.5D, the refractive power difference is automatically increased to .

[0011] Anti-dizziness design, the double lenses are coated with a 420-450 nm blue light cut-off film layer and an anti-fog coating layer with a contact angle >110°, so as to reduce visual fatigue during high-frequency movement.

[0012] Further, the stepper motor drive comprises a flexible coupling with a torsional stiffness of 20 N・mm / rad and a grating ruler closed-loop feedback with a resolution of 0.5 μm, and when the lens movement speed deviation is >5% or the position error is >0.2 mm, a PID controller is triggered to automatically correct, wherein the PID controller corresponds to a proportional coefficient of 1.2, an integral time of 0.3 s, an integral coefficient of 0.5 and a differential coefficient of 0.05, so as to ensure that the refractive power switching delay during the dynamic adjustment process of the reciprocating movement is ≤30 ms.

[0013] Further, the implementation of the micro-current stimulation module further comprises:

[0014] Acupoint positioning: real-time calibration of the position of each flexible electrode by infrared imaging to ensure that the 16-point flexible electrode array adapts to fit;

[0015] Temperature-current coupling: when the temperature of the hot compress adjusted by the PID temperature control system reaches 40℃, the current intensity of the pulse current is automatically reduced by 20% to avoid burns;

[0016] Biostimulation feedback unit: for monitoring eyelid muscle electrical signals, and pausing stimulation when the corresponding eyelid muscle electrical signals are >200μV.

[0017] Further, the corresponding adjustment fluctuation range of the PID temperature control system is ±0.5℃.

[0018] The beneficial effects of the present application are:

[0019] The myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biological stimulation comprises a tunable optical training module, a micro-current stimulation module and an intelligent control system, and compared with the prior art, the beneficial effects of the present application are that the tunable optical training module is dynamically defocused in the double-lens area, wherein the central correction area adopts a spherical lens, which can accurately correct vision and ensure the basic visual clarity; the peripheral defocus area adopts a non-spherical ring design, which can effectively control the axial growth and reduce the myopia development factors from the peripheral visual area, the refractive power difference is flexibly adjusted between +1.50D and-4.00D, which adapts to the needs of patients with different degrees of myopia, the stepping motor drives the double lens to move back and forth in the range of 28-35cm at a frequency of 0.5-3Hz and a high precision of ±0.1mm, simulates the dynamic adjustment load of 5-20D when viewing natural objects, and promotes the ciliary muscle to perform focusing-relaxing alternating training; this high-frequency and high-precision training mode can effectively exercise the contraction and relaxation capacity of the ciliary muscle, and long-term use can reduce the elastic modulus of the ciliary muscle by more than 25%, significantly improve the elasticity and adjustment capacity of the ciliary muscle, improve the eye adjustment function, delay the progression of myopia, and even help some patients to achieve a certain degree of recovery of vision, thereby providing a new effective way for myopia prevention and treatment. Then, the micro-current stimulation module exhibits excellent precise treatment characteristics by virtue of a 16-point flexible electrode array, the fine layout of each flexible electrode with a diameter of 3mm and a spacing of 5mm can accurately cover 8 pairs of key acupoints of the eye socket such as Qingming and Zanzhu, which are closely connected with the eye meridians and are crucial for regulating the blood of the eye and improving the visual function, can output a pulse current with a current of 0.5-2mA and a frequency of 1-100Hz, can flexibly adjust the stimulation intensity and frequency according to the individual differences and treatment stages of patients, realize personalized treatment, and the synchronously integrated PID temperature control system maintains a hot compress temperature of 38-42℃, the warm stimulation can effectively promote the blood circulation of the eye, relieve eye fatigue, enhance the metabolism of the eye tissue, and cooperate with the micro-current stimulation to achieve a synergistic effect, through stimulating the acupoints and the warm effect, the module can dredge the eye meridians, regulate the nerve function, promote the nutrition supply of the intraocular tissue, and improve the function of the eye muscle and the retina, thereby playing a significant role in relieving visual fatigue, controlling the deepening of myopia and improving the symptoms of eye discomfort, and gradually reversing the formed myopia.Finally, the intelligent control system, as the "brain" of the entire myopia treatment plan, has a core value. The built-in OCT axial monitoring unit and machine learning processor, like a precise monitoring and decision-making center, can analyze key eye parameters such as axial length, corneal curvature, and accommodation lag in real time and accurately. These parameters are important indicators for evaluating myopia development and treatment effectiveness. Through dynamic monitoring and analysis of these parameters, the system can timely understand the changes in the patient's eye condition. Based on this, the intelligent control system can dynamically optimize the frequency, distance, and refractive power difference of the double lenses in the adjustable optical training module, as well as the corresponding pulse current and hot compress temperature of the micro-current stimulation module, achieving precise regulation of the treatment plan. This intelligent and personalized treatment mode not only improves the effectiveness of myopia treatment but also reduces ineffective treatment and over-treatment, providing patients with a more scientific, efficient, and safe myopia treatment experience. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, when read in conjunction with the accompanying drawings:

[0021] Figure 1 Module schematic diagram of the myopia reversal treatment device based on the synergistic effect of composite optical accommodation and biological stimulation according to the present application. DETAILED DESCRIPTION

[0022] The technical device of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In addition, the accompanying drawings are only schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities, which do not necessarily have to correspond to physically or logically independent entities. The functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0024] It should be understood that, although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the example embodiments. The term "and / or" as used herein includes any and all combinations of one or more of the associated associated items.

[0025] To achieve the above object, please refer to Figure 1 The application provides a myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biological stimulation, which is composed of the synergistic operation among an adjustable optical training module, a micro-current stimulation module and an intelligent control system, wherein

[0026] The adjustable optical training module is designed by dynamic defocus of the regions corresponding to the double lenses, including a central correction region and a peripheral defocus region. The central correction region adopts a spherical lens, and the peripheral defocus region adopts an aspherical ring design to synchronously drive and adjust the refractive difference between the central correction region and the peripheral defocus region in the range of +1.50D to -4.00D. Meanwhile, the double lenses are driven by a stepping motor to reciprocate in the range of 28-35 cm at a frequency of 0.5-3 Hz and a moving accuracy of ±0.1 mm, and the ciliary muscle is guided to perform focusing-relaxing alternating training, so as to simulate the dynamic adjustment load of 5-20D when viewing objects naturally, so that the corresponding elastic modulus of the ciliary muscle is reduced by ≥25%.

[0027] In the embodiment of the application, the adjustable optical training module in the myopia reversal treatment device is designed by dynamic defocus of the regions corresponding to the double lenses. Taking a 14-year-old myopia patient as an example, the central correction region is equipped with a spherical lens, and the peripheral defocus region adopts an aspherical ring design. Through a precise gear transmission system and a stepping motor, the refractive difference between the central correction region and the peripheral defocus region can be synchronously driven and adjusted. The initial setting of the refractive difference is , gradually adjusting and making the diopter difference range from +1.50D to -4.00D, the driving accuracy of the stepping motor is ±0.1mm, the double lenses are driven to make reciprocating linear motion in the range of 28-35cm at a frequency of 1.5Hz, in a 30-minute training, the lens moving distance is monitored in real time by a laser range finder to ensure the moving accuracy, through the reciprocating movement, the ciliary muscle is guided to carry out focusing-relaxing alternating training, simulating the dynamic adjustment load of 5-20D in natural viewing, before the training, the elastic modulus of the ciliary muscle is detected by ultrasonic elastography to be 40kPa, after 8 weeks of continuous training, 5 days a week, 2 times a day, the ciliary muscle elastic modulus is detected again to be 28kPa, the elastic modulus is reduced by 40-28 / 40*100%=30%>25%, effectively improving the elasticity of the ciliary muscle, and laying a physiological foundation for myopia reversal.

[0028] Preferably, the micro-current stimulation module comprises a 16-point flexible electrode array, wherein each flexible electrode has a diameter of 3mm and a spacing of 5mm, so as to accurately cover 8 pairs of orbital acupoints corresponding to Qingming, Cuanzhu, Yuyao, Situzhong, Taiyang, Chengqi, Sibai and Houqian, and output pulse current with a current of 0.5-2mA and a frequency of 1-100Hz adjustable, and a PID temperature control system is integrated synchronously to maintain a hot compress temperature of 38-42 DEG C.

[0029] In the embodiment of the application, the micro-current stimulation module adopts a 16-point flexible electrode array, each flexible electrode has a diameter of 3mm and a spacing of 5mm, and the electrodes are accurately fixed on a medical silica gel substrate through high-precision 3D printing technology, in the treatment process, the electrode array accurately covers 8 pairs of acupoints around the patient's eye socket, including Qingming, Cuanzhu, etc., through an infrared positioning system, the electrodes are connected to a high-precision constant current source, and pulse current with a current of 0.5-2mA and a frequency of 1-100Hz adjustable can be output, taking the 14-year-old patient as an example, the initial current intensity is set to 1.0mA and the frequency is 5Hz. Meanwhile, the integrated PID temperature control system monitors the hot compress temperature in real time through a micro thermistor, the temperature control accuracy is ±0.5 DEG C, the hot compress temperature is maintained at 38-42 DEG C, in a 20-minute treatment, the current intensity and the frequency are accurately controlled through a programmable logic controller (PLC), the temperature data is transmitted to the control system in real time through a data acquisition card, and after the treatment, the temperature of the electrode covered area is uniformly distributed between 38-42 DEG C through a skin temperature tester, so that the safety and effectiveness of the treatment are ensured.

[0030] Preferably, the intelligent control system, the built-in OCT axial monitoring unit and the machine learning processor are used to analyze the axial length, corneal curvature and accommodation lag in real time, dynamically optimize the frequency, distance and refractive power difference of the double lenses in the adjustable optical training module and the pulse current of the micro-current stimulation module and the hot compress temperature, so as to realize the precise regulation and control of the individualized myopia reversal treatment plan.

[0031] In the embodiment of the present application, the intelligent control system is provided with an OCT axial monitoring unit and a machine learning processor to realize the precise regulation and control of the individualized myopia reversal treatment plan. The axial resolution of the OCT axial monitoring unit is 5 μm, which can measure the axial length in real time. The measurement accuracy of the corneal curvature is ± 0.05 D. The accommodation lag is measured by an infrared optometry instrument, and the accuracy is ± 0.25 D. During the treatment process, the machine learning processor collects the axial length, corneal curvature and accommodation lag data every 10 minutes. Taking the 14-year-old patient as an example, at the second week of treatment, the OCT monitoring shows that the axial length increases by 0.03 mm, and the accommodation lag is 1.75 D. Based on the preset algorithm model (set as wherein is the parameter adjustment amount, is the axial change amount, is the accommodation lag, = 10, = 5, the calculation result is that the parameter needs to be adjusted. The system automatically reduces the frequency of the double lenses of the adjustable optical training module to 1.3 Hz and increases the refractive power difference to + 1.75 D. At the same time, the pulse current intensity of the micro-current stimulation module is increased to 1.2 mA, and the hot compress temperature is maintained at 39.5℃. Through this real-time dynamic optimization, the treatment plan is matched with the physiological state of the patient's eye, and individualized precise regulation and control are realized.

[0032] Further, the adjustable optical training module further comprises:

[0033] A double-zone linkage mechanism is used to realize the synchronous translation of the refractive power difference between the corresponding lenses in the central correction zone and the peripheral defocus zone through magnetic coupling, wherein the refractive power difference is wherein represents the adjustment coefficient, specifically 0.8-1.2, represents the real-time distance of lens movement, represents the initial distance of the lens;

[0034] In this embodiment of the invention, a dual-zone linkage mechanism is used during actual myopia reversal treatment to achieve synchronous translation of the refractive error difference between the corresponding lenses in the central correction zone and the peripheral defocus zone. Taking a myopic patient as an example, the initial refractive error of the lens worn by the patient is -3.00D in the central correction zone and -2.00D in the peripheral defocus zone, with an initial lens distance of 10mm. When the patient adjusts their eye, the lens will move accordingly based on the eye movement. Assuming the accommodation coefficient... The real-time distance of lens movement is 1.0 (within the range of 0.8-1.2). It is 2mm, according to the formula for diopter difference. (in Because of the difference in refractive power, (where the initial distance is the lens distance), the refractive error difference at this point can be calculated as follows: =0.16D. Through magnetic coupling technology, the lens can be moved synchronously between the central correction zone and the peripheral defocus zone, so that the refractive difference is always kept within an appropriate range to provide a stable myopia correction effect. For example, when the patient looks at a distant object, the lens will automatically adjust so that the refractive power of the central correction zone is more suitable for distance vision, and the refractive power of the peripheral defocus zone is adjusted accordingly to reduce hyperopic defocus of the peripheral retina, thereby helping to control the development of myopia.

[0035] Preferably, dynamic fuzzy control automatically increases the refractive error when a lens accommodation lag greater than 0.5D is detected between the central correction zone and the peripheral defocus zone. ;

[0036] In this embodiment of the invention, dynamic blur control plays a crucial role in the myopia reversal treatment process. When a lens accommodation lag greater than 0.5D is detected between the central correction zone and the peripheral defocus zone, the refractive error needs to be automatically increased. Taking a patient undergoing treatment as an example, at a certain moment, a professional eye testing device detects that the lens accommodation lag between the central correction zone and the peripheral defocus zone is 0.6D, exceeding the 0.5D threshold. At this time, according to preset rules, the refractive error is automatically increased to... (in (assuming the current refractive error) If the difference is 0.16D, then the increased refractive error is 0.16D + 0.75D = 0.91D. This dynamic adjustment of the refractive error can compensate for the lag in lens accommodation in a timely manner, ensuring that patients can obtain clear vision under different visual needs, and also helps to improve the effect of myopia reversal treatment.

[0037] Preferably, the anti-dizziness design is adopted, and a 420-450 nm blue light cut film layer and an anti-fog coating layer with a contact angle greater than 110° are coated on the double lenses to reduce visual fatigue caused by high-frequency movement when the double lenses are worn.

[0038] In the embodiments of the present application, in order to reduce the visual fatigue of the patient caused by high-frequency movement when wearing the double lenses, an anti-dizziness design is adopted, and a 420-450 nm blue light cut film layer and an anti-fog coating layer with a contact angle greater than 110° are coated on the double lenses. Taking a specific double lens product as an example, the blue light cut film layer can effectively cut off the blue light with a wavelength in the range of 420-450 nm, reducing the stimulation of blue light to the eyes. At the same time, the contact angle of the anti-fog coating layer is greater than 110°, so that the lens surface has good hydrophobicity, which can effectively prevent the formation of fog and maintain the clear vision of the lens. When the patient is engaged in daily activities such as exercise or rapid head turning, the double lenses will move at a high frequency with the movement of the head. Due to the effects of the blue light cut film layer and the anti-fog coating layer, the patient can reduce the visual fatigue caused by blue light stimulation and lens fogging, improve the comfort and visual quality of wearing, for example, when exercising outdoors, even if the lens surface encounters water vapor, the anti-fog coating layer can make the water vapor quickly slide off, keep the lens clear, and enable the patient to clearly see the surrounding environment, while reducing the damage of blue light to the eyes, which is helpful for the smooth progress of myopia reversal treatment.

[0039] Further, the stepper motor drive includes a flexible coupling with a torsional stiffness of 20 N・mm / rad and a grating scale closed-loop feedback with a resolution of 0.5 μm. When the lens movement speed deviation is greater than 5% or the position error is greater than 0.2 mm, the PID controller is triggered to automatically correct, wherein the corresponding proportional coefficient of the PID controller is 1.2, the integral time is 0.3 s, the integral coefficient is 0.5, and the differential coefficient is 0.05, to ensure that the refractive power switching delay in the corresponding dynamic adjustment process of the reciprocating movement is less than or equal to 30 ms.

[0040] In the embodiments of the present application, the stepping motor drive system is the key component for realizing the precise movement of the lens in the myopia reversal treatment equipment based on the synergistic effect of composite optical adjustment and biological stimulation. Taking a certain treatment equipment as an example, the stepping motor is connected to the lens transmission mechanism through a flexible coupling with a torsional stiffness of 20 N·mm / rad. The coupling can effectively buffer the torque fluctuation during the operation of the motor, ensuring the smooth movement of the lens. At the same time, the system is equipped with a grating ruler with a resolution of 0.5 μm for closed-loop feedback to monitor the position information of the lens in real time. During the treatment process, when the lens movement speed is set to 10 mm / s and the movement distance is 5 mm, if the actual detected lens movement speed is 9.4 mm / s, the speed deviation is (10-9.4) / 10*100%=6%>5%; or the actual movement position is 4.7 mm, the position error is 5-4.7=0.3 mm>0.2 mm, at this time the system immediately triggers the PID controller to automatically correct. The proportional coefficient of the PID controller is 1.2, the integral time is 0.3 s, the integral coefficient is 0.5, and the differential coefficient is 0.05. The adjustment amount is calculated through the formula (wherein is the output of the controller, is the proportional coefficient, is the integral coefficient, is the differential coefficient, is the error) to adjust the driving parameters of the stepping motor. Through actual testing, the refractive power switching delay is always controlled within 30 ms during the dynamic adjustment process, ensuring the timeliness and accuracy of optical adjustment and providing stable optical conditions for myopia reversal treatment.

[0041] Further, the implementation of the micro-current stimulation module further includes:

[0042] Acupoint positioning: real-time calibration of the positions of each flexible electrode through infrared imaging to ensure that the 16-point flexible electrode array is adaptively fitted;

[0043] In the embodiment of the present application, the accuracy of acupoint positioning is crucial when performing biological stimulation treatment. The treatment device uses infrared imaging technology to real-time calibrate the position of the 16-point flexible electrode array. Taking eye acupoint treatment as an example, after the patient wears the treatment device, the infrared imaging system scans the eye area at a speed of 20 frames per second, captures the temperature distribution difference of the eye skin surface, and identifies the acupoint position. Each flexible electrode is equipped with a micro pressure sensor, and the pressure detection accuracy is 0.1N. When the contact pressure between the electrode and the skin is detected to be lower than 0.5N, it indicates that the electrode is not tightly attached. The system adjusts the electrode position through a micro servo motor to make the electrode adapt to the skin. For example, the BL1 (Tongmai) is positioned on the 0.1-inch recess above the inner corner of the eye, and the bilateral symmetry is achieved. The electrode is designed as a 3mm diameter circular electrode, and a 1-2mA pulse current (frequency 10Hz) is applied to stimulate the ciliary ganglion. The BL2 (Cuanzhu) is positioned in the forehead recess, and the bilateral symmetry is achieved. The technical parameter is a rectangular electrode (5x3mm), and a 1.5mA alternating current is used to improve the frontal muscle tension. The EX-HN4 (Yuliuhuo) is positioned at the pupil straight up and the midpoint of the eyebrow, and is innovatively applied to enhance the blood supply of the supraorbital nerve in combination with 42℃ hot compress. The SJ23 (Situhong) is positioned in the lateral recess of the eyebrow tip, and the current characteristics are 0.8mA low frequency (5Hz) stimulation of the temporal superficial artery branch. The EX-HN5 (Taiyang) is positioned 1 inch outside the midpoint of the temporal and lateral corner line, and the biological effect is 2mA current to regulate the excitability of the visual cortex. The ST1 (Chengqi) is positioned straight below the pupil and at the infraorbital margin. The electrode is adapted to an arc-shaped flexible electrode to fit the infraorbital margin to improve the microcirculation of the orbicular muscle. The ST2 (Sibai) is positioned 0.3 inches below the Chengqi. The treatment parameter is 1.2mA current + 40℃ hot compress to synergistically enhance the infraorbital nerve conduction. The EX-HN7 (Houbu) is positioned at the junction of the outer 1 / 4 and the inner 3 / 4 of the infraorbital margin. It is innovatively designed as a micro needle-shaped electrode (diameter 0.5mm) to accurately stimulate the ophthalmic artery branch. The system immediately starts the adjustment program to accurately move the electrode to the acupoint center through the servo motor, ensuring that the 16-point flexible electrode array accurately covers the key acupoints around the eyes, providing accurate action sites for subsequent bioelectric stimulation treatment, and improving the treatment effect.

[0044] Preferably, temperature-current coupling: when the hot compress temperature adjusted by the PID temperature control system reaches 40℃, the current intensity of the pulse current is automatically reduced by 20% to avoid burns;

[0045] In the embodiment of the present application, the safety and effectiveness of the treatment are ensured by the temperature-current coupling mechanism during the treatment process, and the PID temperature control system of the device adjusts the hot compress temperature with an accuracy of ±0.5℃. When the PID temperature control system adjusts the hot compress temperature to 40℃, the system automatically starts the temperature-current coupling program. Assuming that the initial pulse current intensity is 10mA, the pulse current intensity is automatically reduced by 20% according to the rules, i.e. the adjusted current intensity is 10× (1−20%) =8mA. This adjustment process is completed by a high-precision current adjustment module, which has a current adjustment resolution of 0.01mA and a response time of less than 10ms. Through this temperature-current coupling adjustment method, the hot compress promotes the blood circulation of the eye while effectively avoiding skin burns caused by excessive current intensity, achieving safe and effective composite treatment. For example, during a 30-minute treatment process, the temperature is always stable at 40℃±0.5℃, and the current intensity is maintained at 8mA±0.1mA, which not only achieves the treatment effect but also ensures the safety of the patient.

[0046] Preferably, the biological stimulation feedback unit is used to monitor the eyelid electromyogram, and the stimulation is paused when the corresponding eyelid electromyogram of muscle spasm is greater than 200μV.

[0047] In the embodiment of the present application, the eyelid electromyogram of the patient is monitored in real time by the biological stimulation feedback unit to ensure treatment safety. The unit uses a high-sensitivity electromyography sensor with a signal acquisition accuracy of 1μV and a sampling frequency of 1000Hz. During the treatment process, when the sensor detects the eyelid electromyogram, it removes noise interference through a band-pass filter (passband frequency of 1-500Hz), and then amplifies the signal by 1000 times through an amplification circuit for processing. When the eyelid electromyogram is greater than 200μV, it is determined that there is muscle spasm. For example, during a treatment, the patient has muscle spasm due to eye fatigue, and at this time the eyelid electromyogram instantaneously rises to 250μV. The biological stimulation feedback unit immediately triggers the pause mechanism, cuts off the pulse current output within 10ms, and issues an alarm through a buzzer. At the same time, the system records the time and duration of muscle spasm, etc. for subsequent analysis and adjustment of the treatment plan by the doctor. After the electromyogram decreases to below 150μV and stabilizes for 5 minutes, the system automatically resumes the pulse current stimulation, ensuring the safety and effectiveness of the treatment process and avoiding damage to the patient's eye muscles due to excessive stimulation.

[0048] Further, the adjustment fluctuation range corresponding to the PID temperature control system is ±0.5℃.

[0049] Therefore, the embodiments should be regarded, at any point, as being exemplary and not limiting, the scope of the application being defined by the appended claims and not by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

[0050] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A myopia reversal treatment device based on the synergistic effect of composite optical modulation and biostimulation, characterized in that, It consists of an adjustable optical training module, a microcurrent stimulation module, and an intelligent control system working together. The adjustable optical training module features a dynamic defocus design with dual lenses, including a central correction zone and a peripheral defocus zone. The central correction zone uses a spherical lens, while the peripheral defocus zone uses an aspherical ring design to synchronously drive and adjust the refractive power difference between the central correction zone and the peripheral defocus zone within the range of +1.50D to -4.00D. Simultaneously, a stepper motor drives the dual lenses to reciprocate within a 28-35cm range at a frequency of 0.5-3Hz with a movement accuracy of ±0.1mm, guiding the ciliary muscle through alternating focus and relaxation training to simulate a dynamic accommodative load of 5-20D during natural vision, thereby reducing the elastic modulus of the ciliary muscle by ≥25%. The adjustable optical training module further includes: The dual-zone linkage mechanism is used to achieve synchronous translation of the refractive power difference between corresponding lenses in the central correction zone and the peripheral defocus zone through magnetic coupling. Specifically, the refractive power difference is... in This represents the adjustment coefficient, specifically ranging from 0.8 to 1.

2. Indicates the real-time distance the lens has moved. Indicates the initial distance of the lens; Dynamic fuzzy control automatically increases the refractive error when it detects a lens accommodation lag greater than 0.5D between the central correction zone and the peripheral defocus zone. ; The anti-dizziness design features a 420-450nm blue light cutoff film and an anti-fog coating with a contact angle >110° on the dual lenses to reduce visual fatigue during high-frequency movement. The microcurrent stimulation module includes a 16-point flexible electrode array, with each flexible electrode having a diameter of 3mm and a spacing of 5mm, to precisely cover eight pairs of orbital acupoints corresponding to Qingming, Zanzhu, Yuyao, Sizhukong, Taiyang, Chengqi, Sibai, and Qiuhou. It can output a pulse current of 0.5-2mA with an adjustable frequency of 1-100Hz, and simultaneously integrates a PID temperature control system to maintain a hot compress temperature of 38-42℃. The intelligent control system incorporates an OCT axial length monitoring unit and a machine learning processor to analyze axial length, corneal curvature, and accommodative hysteresis in real time. It dynamically optimizes the frequency, distance, and refractive error difference of the dual lenses in the adjustable optical training module, as well as the pulse current and heat therapy temperature of the microcurrent stimulation module, thereby achieving precise control of personalized myopia reversal treatment plans.

2. The myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biostimulation according to claim 1, characterized in that, The stepper motor drive includes a flexible coupling with a torsional stiffness of 20 N·mm / rad and a closed-loop feedback with a grating ruler and a resolution of 0.5 μm. When the lens movement speed deviation is greater than 5% or the position error is greater than 0.2 mm, the PID controller is triggered for automatic correction. The PID controller has a proportional coefficient of 1.2, an integral time of 0.3 s, an integral coefficient of 0.5, and a derivative coefficient of 0.05 to ensure that the diopter switching delay is ≤30 ms during the dynamic adjustment process corresponding to the reciprocating movement.

3. The myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biostimulation according to claim 1, characterized in that, The implementation of the microcurrent stimulation module further includes: Acupoint positioning: The position of each flexible electrode is calibrated in real time through infrared imaging to ensure that the 16-point flexible electrode array fits adaptively; Temperature-current coupling: When the heat treatment temperature adjusted by the PID temperature control system reaches 40℃, the current intensity corresponding to the pulse current will be automatically reduced by 20% to avoid burns. Biostimulation feedback unit: used to monitor eyelid electromyography (EMG) signals, and to pause stimulation when the eyelid EMG signal corresponding to muscle spasm is >200μV.

4. The myopia reversal treatment device based on the synergistic effect of composite optical adjustment and biostimulation according to claim 3, characterized in that, The PID temperature control system has an adjustment fluctuation range of ±0.5℃.

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