Virtual reality-based myopia prevention and control device and method

Abstract

The invention discloses a myopia prevention and control device and method based on virtual reality, and relates to the field of myopia prevention and control. The device comprises a control module, an optical display module and a red light module; the control module is respectively connected with the optical display module and the red light module and is used for outputting an image playing instruction to the optical display module and outputting a red light irradiation instruction to the red light module; the optical display module is used for playing 3D outdoor scene video image data based on the image playing instruction; the 3D outdoor scene video image data is an outdoor dynamic natural light environment simulated based on a VR technology, and the 3D outdoor scene video image data realizes far and near conversion through moving a virtual sighting mark so as to guide a user to look far; the red light module is used for emitting low-frequency red light to the eyes of the user based on the red light irradiation instruction. According to the invention, effective myopia prevention and control can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of myopia prevention and control, and in particular to a myopia prevention and control device and method based on virtual reality. Background Art

[0002] Myopia, also known as nearsightedness, is the most common eye refractive disorder in the world. The direct cause of myopia caused by the accommodation reaction of close-up vision is the increase of accommodative intraocular pressure (mainly due to accommodative pupillary block). The higher intraocular pressure acts on the tender, underdeveloped, and highly elastic eyeball wall, which gradually leads to the expansion and thinning of the eyeball wall, the enlargement of the eyeball, and the elongation of the eye axis, which is irreversible and difficult to heal.

[0003] Existing myopia prevention and control methods include the use of functional lenses (orthokeratology lenses and lenses with defocusing functions, etc.) or the use of low-concentration atropine, but these do not have a myopia prevention effect. For children in their developmental period, myopia prevention and control focuses on prevention. At present, there are many documents suggesting that adolescent children should increase their exposure to outdoor sunlight, pay proper attention to rest while reading, and use distant views to relax their ciliary muscles. However, these suggestions are difficult to implement and have poor compliance. Summary of the invention

[0004] The purpose of this application is to provide a myopia prevention and control device and method based on virtual reality, which can achieve effective myopia prevention and control.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] In a first aspect, the present application provides a myopia prevention and control device based on virtual reality, including a control module, an optical display module and a red light module;

[0007] The control module is connected to the optical display module and the red light module respectively, and is used to: output an image playback instruction to the optical display module, and output a red light irradiation instruction to the red light module;

[0008] The optical display module is used to: play 3D outdoor scene video image data based on the image playback instruction; the 3D outdoor scene video image data is an outdoor dynamic natural lighting environment simulated based on VR technology, and the 3D outdoor scene video image data is transformed into near and far by moving a virtual sight mark to guide the user to look far away;

[0009] The red light module is used to emit low-frequency red light to the eyes of the user based on the red light irradiation instruction.

[0010] In a second aspect, the present application provides a myopia prevention and control method based on virtual reality, which is applied to a myopia prevention and control device based on virtual reality, and the method comprises:

[0011] Output the image playback instruction to the optical display module and output the red light irradiation instruction to the red light module through the control module;

[0012] The optical display module plays 3D outdoor scene video image data based on the image playback instruction; the 3D outdoor scene video image data is an outdoor dynamic natural lighting environment simulated based on VR technology, and the 3D outdoor scene video image data realizes the transformation of distance by moving the virtual sight mark to guide the user to look far away;

[0013] The red light module emits low-frequency red light to the eyes of the user based on the red light irradiation instruction.

[0014] According to the specific embodiments provided in this application, this application has the following technical effects: This application combines virtual reality enhancement technology with myopia prevention and control, and a control module and an optical display module are set in the device, and virtual reality enhancement technology is used to simulate outdoor sunlight to provide natural lighting effects to the eyes. A red light module is also provided in the device, which emits low-frequency red light to the user's eyes to stimulate the eyes to delay the occurrence of myopia or reverse the long eye axis of myopia. The optical display module also achieves far and near transformation by moving the virtual sight mark to guide the user to look far away, effectively exercise the ciliary muscle, enhance the adjustment power of the ciliary muscle, and relieve visual fatigue. In summary, this application integrates and extends the current myopia prevention and control means and technologies, making the myopia prevention and control system more perfect and able to achieve effective myopia prevention and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of a myopia prevention and control device based on virtual reality in one embodiment of the present application. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] In an exemplary embodiment, Figure 1 As shown, a myopia prevention and control device based on virtual reality is provided, including a control module, an optical display module and a red light module; wherein the control module is connected to the optical display module and the red light module respectively, and the control module is used to: output an image playback instruction to the optical display module, and output a red light irradiation instruction to the red light module. The optical display module is used to: play 3D outdoor scene video image data based on the image playback instruction; the 3D outdoor scene video image data is an outdoor dynamic natural lighting environment simulated based on VR (Virtual Reality) technology, and the 3D outdoor scene video image data realizes far and near transformation by moving virtual sight marks to guide the user to look far away. The red light module is used to: emit low-frequency red light to the user's eyes based on the red light irradiation instruction.

[0020] In a specific application, the image playback instructions include virtual scene playback instructions and depth of field transition transformation instructions; the optical display module includes: a micro display, an optical component and a micro drive motor; the micro display is arranged on the top surface of the optical component to avoid the human eye directly facing the micro display; the micro display is an organic electric laser display OLED, which is a current-type organic light-emitting device; the optical component includes a free-form surface lens, so that the image of the micro display forms a virtual 3D image about 2 meters in front of the human eye.

[0021] The micro display is used to play 3D outdoor scene video image data based on the virtual scene playback instruction. The micro drive motor is used to adjust the position of the optical lens of the optical component based on the depth of field transition transformation instruction to change the position of the virtual sight mark to achieve near-far transformation; in other words, the micro drive motor is controlled by the instruction issued by the control module to fine-tune the relative position of the optical lenses in the optical component to achieve the image near-eye display and image depth of field transition transformation. The optical component is used to display the 3D outdoor scene video image data played by the micro display at near-eye or far-eye.

[0022] In addition, in order to provide necessary light stimulation, the image playback instruction also includes a light intensity instruction; the microdisplay is also used to: based on the light intensity instruction, adjust the light intensity in the 3D outdoor scene video image data to simulate dynamic natural light.

[0023] In a specific application, the red light module includes a semiconductor laser diode; the wavelength of the low-frequency red light emitted by the red light module is in the range of 650±10nm, the light output power is less than or equal to 1mW, the illumination range is 1200lux-1800lux, and the spectrum range is 600nm-1000nm. The low-frequency red light emitted by the red light module irradiates for a first preset duration each time, and irradiates once every second preset duration, for example, the low-frequency red light emitted by the red light module irradiates for a first preset duration each time for 3min, irradiates twice a day, and the interval between the two irradiations is not less than 4 hours (i.e., the second preset duration).

[0024] In a specific application, the control module is also used to: receive the user's environment selection information; based on the environment selection information, call the corresponding 3D outdoor scene video image data, combined with the preset light intensity information, to generate an image playback instruction. Among them, the preset light intensity information includes the range of light intensity: 3000lux~30000lux. In summary, the control module set in this application can independently calculate, input and output data, and can provide outdoor scene mode storage, switching, light intensity control and other functions, which is an important data storage, exchange and hardware device driver control structure.

[0025] In another exemplary embodiment, the virtual reality-based myopia prevention and control device of the present application also includes a power module; the power module is used to power the control module, the optical display module and the red light module; the power module uses a lithium battery.

[0026] In summary, this application realizes the application of virtual reality technology in the field of life and health, and realizes the following functions:

[0027] (1) Use VR technology to simulate outdoor dynamic natural lighting environment. Studies have shown that the indoor light intensity is usually only 10lux-1000lux, while the outdoor light intensity can reach 10000lux-30000lux even on cloudy days or in the shade, and can even reach 100000lux on sunny days. Bright light can stimulate the retina to secrete more dopamine. Dopamine can mediate eye functions such as visual signals, eye development and refractive adjustment, and can inhibit the growth of the eye axis, thereby delaying the occurrence and development of myopia.

[0028] The control module in this application simulates dynamic natural light based on VR technology, and has the following technical advantages: the average illumination is high and controllable, which can inhibit the occurrence and development of myopia; the illumination time is controllable, which avoids retinal damage and discomfort caused by long-term exposure to high-intensity light sources during outdoor activities. While providing high-intensity lighting, this application can load dynamic light waves to make the eyes follow the light and make unconscious movements, thereby relieving eye fatigue, especially through the autonomous adaptive adjustment of the pupil to dynamic lighting, driving the three-way linkage of the iris, ciliary muscle and lens, so that the eye adjustment system maintains its flexibility, preventing and controlling the occurrence and development of myopia.

[0029] (2) In the present application, the control module issues instructions, the optical display module plays a specific video, and the sight mark moves back and forth from near to far. Through the virtual movement of the sight mark, the user (especially teenagers and children) is guided to conduct active distance viewing training, relax the ciliary muscles, and relieve visual fatigue; the movement of the sight mark is used to guide the refractive system to change rhythmically, train the adjustment ability of the refractive system, and switch between the near point and far point sight marks to produce strong stimulation to the eyes, train visual sensitivity, and achieve the purpose of preventing myopia.

[0030] (3) In the present application, a red light module is provided to emit low-frequency red light to illuminate the user's eyes. The spectrum range of the red light is 600nm-1000nm, which can increase cell metabolism and energy supply by enhancing the metabolic repair process, regulate light-neural physiological functions, restore the biological functions of damaged mitochondria, upregulate cell protection factors, and inhibit cell apoptosis.

[0031] The device of the present application can simultaneously realize functions such as simulating natural lighting environment, guiding distant vision, and low-energy red light timed illumination, bringing exclusive experience effects combined with AR technology to young and child users, which is both entertaining and educational, and has no restrictions on time and place of use. Under the premise of guaranteed safety performance, it brings greater convenience for family use.

[0032] The device of the present application has functional synergy. On the one hand, it simulates the outdoor dynamic natural light environment through VR technology to achieve a specific light intensity, promote dopamine secretion and thus achieve the purpose of preventing myopia; on the other hand, through the built-in red light module, low-energy red light irradiation is used to continuously promote retinal choroidal circulation, improve pupil hypoxia, thereby controlling the growth of the eye axis and inhibiting the occurrence and development of myopia; through VR near-eye display technology, the movement of the virtual visual target forms a 3D video with a sense of depth, trains adolescents and children to relax the ciliary muscles, restores healthy elasticity, and can effectively relieve visual fatigue and control myopia. The device of the present application integrates and extends the current myopia prevention and control means and technologies, realizes the synergistic effect of myopia prevention and control technologies, and makes the myopia prevention and control system more intelligent and personalized; the device of the present application can prevent and correct myopia more lightly, quickly and freely.

[0033] Based on the same inventive concept, the embodiment of the present application also provides a myopia prevention and control method based on virtual reality, which is applied to the myopia prevention and control device based on virtual reality. The implementation scheme for solving the problem provided by the method is similar to the implementation scheme recorded in the above-mentioned device, so the specific limitations in one or more method embodiments provided below can refer to the limitations on the device above, and will not be repeated here. The myopia prevention and control method based on virtual reality of the present application includes the following steps 100-300.

[0034] Step 100: Outputting an image playback instruction to the optical display module and outputting a red light irradiation instruction to the red light module through the control module.

[0035] Step 200, playing the 3D outdoor scene video image data through the optical display module based on the image playback instruction; the 3D outdoor scene video image data is an outdoor dynamic natural lighting environment simulated based on VR technology, and the 3D outdoor scene video image data realizes the transformation of distance by moving the virtual sight mark to guide the user to look far away.

[0036] Step 300 , emitting low-frequency red light to the eyes of the user through the red light module based on the red light irradiation instruction.

[0037] This application uses VR technology to simulate the outdoor dynamic natural lighting environment. Different outdoor scene options can be provided for different user groups, such as sunny beaches, forest trails, gloomy rainy days, city squares, etc., and different light intensity environments are provided through different scenes. In actual applications, different modes can be set in the control module, and the user provides a touch screen for selection. All common modes are set at 3000lux~30000lux illumination, which can meet the needs of most users. Users wear VR myopia prevention and control glasses, and select the corresponding scene mode under guidance according to their own myopia. Under the corresponding illumination environment, the insufficient outdoor lighting time is supplemented to promote the secretion of dopamine in the human eye, so as to achieve the effect of preventing myopia. At the same time, 3D video has a sense of depth, providing 0.15M to infinity viewing distance adjustment training. Users watch 3D videos, which can make the ciliary muscles of children who are already myopic relax and relax until the ciliary muscles restore healthy elasticity and restore the original adjustment function. There is a certain effect of correcting vision and treating pseudomyopia.

[0038] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A myopia prevention and control device based on virtual reality, characterized in that: The virtual reality-based myopia prevention and control device includes a control module, an optical display module and a red light module; The control module is connected to the optical display module and the red light module respectively, and is used to: output an image playback instruction to the optical display module, and output a red light irradiation instruction to the red light module; The optical display module is used to: play 3D outdoor scene video image data based on the image playback instruction; the 3D outdoor scene video image data is an outdoor dynamic natural lighting environment simulated based on VR technology, and the 3D outdoor scene video image data is transformed into near and far by moving a virtual sight mark to guide the user to look far away; The red light module is used to emit low-frequency red light to the eyes of the user based on the red light irradiation instruction.

2. The myopia prevention and control device based on virtual reality according to claim 1, characterized in that: The virtual reality-based myopia prevention and control device also includes a power module; The power module is used to supply power to the control module, the optical display module and the red light module; the power module adopts a lithium battery.

3. The myopia prevention and control device based on virtual reality according to claim 1, characterized in that: The image playback instructions include virtual scene playback instructions and depth of field transition transformation instructions; The optical display module comprises: a micro display, an optical component and a micro drive motor; the micro display is arranged on the top surface of the optical component; The micro display is used to: play 3D outdoor scene video image data based on the virtual scene play instruction; The micro drive motor is used to: adjust the position of the optical lens of the optical component based on the depth of field transition transformation instruction to change the position of the virtual sight mark to achieve the transformation of near and far; The optical component is used to perform near-eye display or far-eye display on the 3D outdoor scene video image data played by the micro display.

4. The myopia prevention and control device based on virtual reality according to claim 3, characterized in that: The image playback instructions also include light intensity instructions; The microdisplay is also used to adjust the light intensity in the 3D outdoor scene video image data based on the light intensity instruction to simulate dynamic natural light.

5. The myopia prevention and control device based on virtual reality according to claim 3, characterized in that: The micro display is an organic laser display (OLED); the optical component includes a free-form surface lens.

6. The myopia prevention and control device based on virtual reality according to claim 1, characterized in that: The red light module includes a semiconductor laser diode; The wavelength of the low-frequency red light emitted by the red light module is in the range of 650±10nm, the light output power is less than or equal to 1mW, the illumination range is 1200lux-1800lux, and the spectrum range is 600nm-1000nm; The low-frequency red light emitted by the red light module irradiates for a first preset time period each time, and irradiates once every second preset time period.

7. The myopia prevention and control device based on virtual reality according to claim 1, characterized in that: The control module is also used to: receive user's environment selection information; and call corresponding 3D outdoor scene video image data according to the environment selection information, combined with preset light intensity information, to generate image playback instructions.

8. The myopia prevention and control device based on virtual reality according to claim 7, characterized in that: The preset light intensity information includes a light intensity range of: 3000 lux to 30000 lux.

9. A myopia prevention and control method based on virtual reality, applied to the myopia prevention and control device based on virtual reality according to any one of claims 1 to 8, characterized in that: The myopia prevention and control method based on virtual reality includes: Output the image playback instruction to the optical display module and output the red light irradiation instruction to the red light module through the control module; The optical display module plays 3D outdoor scene video image data based on the image playback instruction; the 3D outdoor scene video image data is an outdoor dynamic natural lighting environment simulated based on VR technology, and the 3D outdoor scene video image data realizes the transformation of distance by moving the virtual sight mark to guide the user to look far away; The red light module emits low-frequency red light to the eyes of the user based on the red light irradiation instruction.

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