Vision training method and device, computer readable storage medium, and terminal

Abstract

A vision training method and device, a computer-readable storage medium, and a terminal, the method comprising: determining a user's vision value; during the vision training process, displaying to the user a grating corresponding to the vision value adjusted to a preset level according to the user's vision value; wherein there is a preset one-to-one correspondence between the spatial frequency range of the grating and the vision value. The present invention can provide users with accurate and effective vision training, and improve the convenience and fun of the training process.

Description

Technical Field

[0001] The present invention relates to the field of vision training, and in particular to a vision training method and device, a computer-readable storage medium, and a terminal. Background Art

[0002] The human eye is one of the most important organs for humans to obtain information from the outside world, but it is also one of the most vulnerable organs in the human body. Currently, there are a large number of children and adults suffering from eye diseases such as myopia and amblyopia. It is extremely necessary to accurately and effectively train and treat patients' vision to help them improve their vision.

[0003] In the prior art, the training methods for amblyopic eyes mainly include grating therapy, red light stimulation and fine vision training. The prior grating therapy usually involves placing a disc with contrasting black and white stripes on a therapeutic device. The disc rotates with the therapeutic device, and the patient's amblyopic eye is made to stare at the rotating disc to achieve the stimulation purpose. However, the spatial frequency setting of the grating used in the treatment may not be accurate, and the grating type and presentation form are single, resulting in unsatisfactory training effect and boring training process. Red light stimulation therapy directly uses the red light emitted by a light emitting diode (LED) as a light source to stimulate the amblyopic eye to achieve the treatment purpose, but this technology often relies on a static single red light source, and the type and presentation form of the colored light are also single, which lacks fun and attraction for patients, especially children. The traditional fine vision training method is to achieve the training purpose by letting amblyopic patients thread needles, beads, embroider, etc., but this method requires cumbersome props to cooperate, and for children, parents also need to accompany them. The cooperation of the children is not high, and the effectiveness, convenience and fun of the training are insufficient.

[0004] Therefore, there is an urgent need for a vision training method that can accurately and effectively train the user's vision and improve the convenience and fun of the training process. Summary of the invention

[0005] One of the purposes of the present invention is to provide a vision training method and device, a computer-readable storage medium, and a terminal, which can accurately and effectively train the user's vision and improve the convenience and fun of the training process.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a vision training method, comprising the following steps: determining the vision value of a user; during the vision training process, displaying to the user a grating corresponding to the vision value adjusted to a preset level according to the vision value of the user; wherein there is a preset one-to-one correspondence between the spatial frequency range of the grating and the vision value.

[0007] Optionally, the larger the user's vision value is, the higher the vision value level is, and the better the user's vision is; displaying to the user a grating corresponding to the vision value after adjusting the preset level according to the user's vision value includes: displaying to the user a grating corresponding to the vision value after reducing the preset level according to the user's vision value; wherein, the larger the vision value is, the larger the spatial frequency range value of the corresponding grating is.

[0008] Optionally, the grating corresponding to the vision value after the preset level is reduced is displayed to the user according to the vision value of the user, including: for a vision value of 4.7, a grating with a width value greater than or equal to 0.4% and less than or equal to 0.6% is displayed; for a vision value of 4.6, a grating with a width value greater than 0.6% and less than or equal to 0.7% is displayed; for a vision value of 4.5, a grating with a width value greater than 0.7% and less than or equal to 0.9% is displayed; for a vision value of 4.4, a grating with a width value greater than 0.9% and less than or equal to 1.1% is displayed; for a vision value of 4.3 , the display width value accounts for a grating greater than or equal to 11.2% and less than or equal to 1.3%; for a visual acuity value of 4.2, the display width value accounts for a grating greater than or equal to 1.5% and less than or equal to 1.6%; for a visual acuity value of 4.1, the display width value accounts for a grating greater than or equal to 1.8% and less than or equal to 2.0%; for a visual acuity value of 4.0, the display width value accounts for a grating greater than 2.0% and less than or equal to 2.5%; wherein the width value ratio is used to indicate: the ratio of the width value of the grating to the screen length value, or the ratio of the width value of the grating to the screen width value.

[0009] Optionally, before displaying to the user a grating corresponding to a vision value adjusted to a preset level according to the user's vision value, the method further includes: dividing the grating into different levels according to the spatial frequency of the grating, wherein gratings of different levels have corresponding spatial frequency ranges.

[0010] Optionally, the type of the grating is selected from one or more of the following: cutscene grating, bonus level surface grating, treasure chest grating, skill grating.

[0011] Optionally, the type of the grating includes a transition grating and / or a bonus level ground grating, wherein when the transition grating and / or the bonus level ground grating are displayed in the same scene, the spatial frequency remains unchanged.

[0012] Optionally, the type of the grating is a transition grating, wherein the transition grating is a static black and white stripe grating and / or a dynamic black and white stripe grating with a contrast ratio of 100%, and is displayed on the screen as a background.

[0013] Optionally, the types of the grating include treasure chest gratings and / or skill gratings, wherein, when the treasure chest gratings and / or the skill gratings are displayed in the same scene, the spatial frequencies of the treasure chest gratings and / or the skill gratings will dynamically increase and / or decrease starting from the spatial frequencies within the corresponding spatial frequency range, and the treasure chest gratings and / or the skill gratings are displayed on the screen as elements in the virtual scene.

[0014] Optionally, the method further includes: displaying a color light of preset contrast to the user, the color light being selected from one or more of the following: static color light and dynamic color light; wherein the color light is integrated into a virtual scene and displayed to the user.

[0015] Optionally, the colored light is selected from one or more of the following: red light, and colored light obtained by mixing red light and at least one other basic colored light in a preset proportion.

[0016] Optionally, when displaying the color light of preset contrast to the user, the display mode is selected from one or more of the following: flashing, translation, rotation, appearing from dark to light, disappearing from light to dark, gradual enlargement, and gradual reduction.

[0017] Optionally, the method further includes: displaying a plurality of virtual objects corresponding to reduced preset level vision values ​​to the user according to the user's vision value, the virtual objects being selected from one or more of the following: static virtual objects and dynamic virtual objects; wherein the size of the virtual objects has a preset one-to-one correspondence with the vision value.

[0018] Optionally, the virtual object is selected from one or more of the following: numbers, letters, virtual animals, virtual plants, virtual characters, virtual monsters, virtual weapons, and virtual treasure chests.

[0019] The embodiment of the present invention further provides a vision training device, comprising:

[0020] A user vision value determination module, used to determine the user's vision value;

[0021] A vision training module is used to display a grating corresponding to a vision value adjusted to a preset level to the user according to the user's vision value during the vision training process; wherein there is a preset one-to-one correspondence between the spatial frequency range of the grating and the vision value.

[0022] An embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned vision training method are executed.

[0023] An embodiment of the present invention further provides a terminal, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the above-mentioned vision training method when running the computer program.

[0024] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0025] In an embodiment of the present invention, the user's vision value is first determined; then, during the vision training process, a grating corresponding to the vision value adjusted to a preset level is displayed to the user according to the user's vision value; wherein there is a preset one-to-one correspondence between the spatial frequency range of the grating and the vision value. Compared with the grating therapy in the prior art, in which the spatial frequency setting of the grating may not be accurate and the training effect is not good, the embodiment of the present invention pre-classifies the spatial frequency of the grating accurately, and corresponds one-to-one with different levels of vision values, and then matches the corresponding level of gratings according to the vision values ​​of different users for vision training. In addition, when displaying the grating to the user, the types and presentation methods of the grating are rich and varied, thereby effectively improving the accuracy, effectiveness and fun of vision training.

[0026] Furthermore, the vision training method further includes: displaying a color light of preset contrast to the user, the color light is selected from one or more of the following: static color light and dynamic color light; wherein the color light is integrated into the virtual scene and displayed to the user; in addition, the color light is selected from one or more of the following: red light, red light and at least one other basic color light mixed in a preset ratio; when displaying the color light of preset contrast to the user, the display mode is selected from one or more of the following: flashing, translation, rotation, appearing from dark to bright, disappearing from bright to dark, gradually enlarging, and gradually shrinking. Compared with the existing red light stimulation therapy, which directly uses the red light emitted by the light-emitting diode as the light source to stimulate the amblyopic eye, the color light type and presentation form are single, and the training process is relatively boring. The embodiment of the present invention uses static and / or dynamic color light of one or more colors of preset contrast, and integrates it into the virtual scene to perform vision training in various forms, which improves the fun of the training process and the effectiveness of the training results.

[0027] Furthermore, the vision training method also includes: displaying multiple virtual objects corresponding to the preset level of vision value reduction to the user according to the user's vision value, and the virtual objects are selected from one or more of the following: static virtual objects and dynamic virtual objects; wherein the size of the virtual objects has a preset one-to-one correspondence with the vision value. Compared with the existing fine vision training method, which trains amblyopic patients by threading needles and beads, the process is cumbersome, boring, and inconvenient. The embodiment of the present invention uses the user's vision value after the preset level is reduced as the limit resolution vision, and designs virtual objects of corresponding sizes to display to the user, and the types of virtual objects are rich and the presentation forms are diverse, so that the purpose of fine vision training can be achieved everywhere, and the training process is more convenient and interesting, which is conducive to increasing the cooperation of users, especially children, and improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a flow chart of a first vision training method in an embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of a standard logarithmic vision chart for determining a user's vision value in an embodiment of the present invention;

[0030] Figure 3 is a schematic diagram of a training scene of a transition grating in an embodiment of the present invention;

[0031] Figure 4 is a flow chart of a second vision training method in an embodiment of the present invention;

[0032] Figure 5 is a table diagram showing a one-to-one correspondence between a visual acuity value and a spatial frequency range of a grating in an embodiment of the present invention;

[0033] Figure 6 It is a structural schematic diagram of a vision training device in an embodiment of the present invention. DETAILED DESCRIPTION

[0034] As mentioned earlier, there are currently a large number of children and adults suffering from eye diseases such as myopia and amblyopia. It is extremely necessary to accurately and effectively train and treat patients' vision to help them improve their vision.

[0035] In the prior art, the training methods for amblyopia mainly include grating therapy, red light stimulation and fine vision training. The existing grating therapy usually requires the patient's amblyopic eye to stare at a rotating black and white striped disk to achieve the stimulation purpose; the red light stimulation therapy directly uses the red light emitted by a light emitting diode (LED) as a light source to stimulate the amblyopic eye; and the traditional fine vision training method is to achieve the training and treatment purpose by letting the amblyopic patient thread a needle, thread beads, embroider, etc.

[0036] After research, the inventors of the present invention found that the grating spatial frequency setting used in the existing grating therapy technology may not be accurate, and the grating type and presentation form are single, resulting in unsatisfactory training effect and boring training process; red light stimulation therapy often relies on a static single red light source, and the type of color light and the color light presentation form are also single, which lacks fun and attraction for patients, especially children; and traditional fine vision training methods require cumbersome props, and children need to be accompanied by their parents. The children's cooperation is not high, and the effectiveness, convenience and fun of the training are insufficient.

[0037] In an embodiment of the present invention, first determine the user's vision value; then, during the vision training process, display the grating corresponding to the vision value adjusted to a preset level to the user according to the user's vision value; wherein the spatial frequency range of the grating has a preset one-to-one correspondence with the vision value. Compared with the grating therapy in the prior art, the spatial frequency setting of the grating may not be accurate, and the training effect is not good. In the embodiment of the present invention, the spatial frequency of the grating is accurately graded in advance, and one-to-one correspondence is made with different levels of vision values, and then the corresponding level of grating is matched according to the vision values ​​of different users for vision training. In addition, when displaying the grating to the user, the types and presentation methods of the grating are rich and varied, thereby effectively improving the accuracy, effectiveness and fun of vision training.

[0038] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and understandable, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] Reference Figure 1 , Figure 1 1 is a flow chart of a first vision training method in an embodiment of the present invention. The first vision training method may include steps S11 to S12:

[0040] Step S11: Determine the user's vision value;

[0041] Step S12: During the vision training process, a grating corresponding to the vision value adjusted to a preset level is displayed to the user according to the vision value of the user.

[0042] There is a preset one-to-one correspondence between the spatial frequency range of the grating and the visual acuity value.

[0043] In the specific implementation of step S11, the user may be an adult or child (such as students of different ages, office workers) who suffers from ophthalmic diseases such as amblyopia and myopia, or has poor vision, visual dysfunction, and urgently needs vision training to improve vision; the vision value may refer to the best vision value, specifically, it may be the user's near vision value, that is, the vision for viewing objects at close range; it may also be the user's far vision value, that is, the vision for viewing objects at a distance.

[0044] In some non-limiting embodiments, the method for determining the user's vision value may be: the vision value measured by various types of vision test charts such as the international standard vision chart, the standard logarithmic vision chart (LogMar), and the Landolt ring vision chart. The specific measurement method adopts the conventional method in the prior art, which will not be repeated here. In other non-limiting embodiments, the method for determining the user's vision value may also be to determine the vision value by using a specific vision detection device, instrument, or a gamified vision detection method. The embodiment of the present invention does not limit the method for determining the vision value.

[0045] In a specific implementation, the relationship between the vision value and the vision value level can be a positive correlation or a negative correlation. Taking the arrangement order of the vision values ​​on the standard logarithmic vision chart as an example: the larger the vision value of the user, the higher the vision value level, indicating that the user's vision is better; the smaller the vision value of the user, the lower the vision value level, indicating that the user's vision is worse.

[0046] In the specific implementation of step S12, during the vision training process, a grating corresponding to the vision value adjusted to a preset level is displayed to the user according to the vision value of the user.

[0047] The adjustment of the preset level may be to increase the preset level or to decrease the preset level, and the specific adjustment method may be determined according to the needs of the scene in the specific implementation. Specifically, the purpose of adjusting the preset level is to make the width value of the displayed grating slightly larger than the size of the sight mark corresponding to the user's actual vision value (best vision value) to achieve a better training effect (the prerequisite here is that the distance between the user's eyes and the screen during vision training is consistent with the distance between the user's eyes and the sight mark during vision testing).

[0048] Among them, the width value of the grating can be expressed by the width value of a single grating in the displayed grating (when the width values ​​of each grating are consistent), or it can be expressed by the average value of the width values ​​of multiple gratings (when the width values ​​of each grating are inconsistent); the size of the sight mark can be expressed by the width value or length value of the sight mark. For sight marks with inconsistent length and width, the average value of the length value and the width value can be used to express it. For other irregularly shaped sight marks, their size can be expressed in other appropriate ways, which is not limited here.

[0049] The spatial frequency of the grating may refer to the number of grating lines or strips per millimeter, or the number of grating cycles per meter. For example, if the width value of the grating is 0.1 mm, the spatial frequency of the grating is 1÷meter, then the line / mm of the grating, or the spatial frequency of the grating is 1÷(0.1×2)×1000=5000 cycles / meter. It can be understood that in a specific implementation, when the size of the screen is fixed, the spatial frequency of the grating is inversely proportional to the width value of the grating. The higher the spatial frequency of the grating, the smaller the width value of a single grating, and the denser the grating displayed on the screen; the lower the spatial frequency of the grating, the larger the width value of a single grating, and the sparser the grating displayed on the screen.

[0050] The principle of grating therapy (visual physiological stimulation therapy) is that the visual cortex cells of the human brain have a high contrast sensitivity to a certain spatial frequency. The higher the spatial frequency, the more it can stimulate the activity response of the visual cortex cells. Since the level of spatial frequency represents the level of visual function, it is closely related to amblyopia. Therefore, it can be understood that the better the user's eyesight, the larger the spatial frequency value of the grating displayed to the user should be, the smaller the width value of a single grating or the average value of the width values ​​of multiple gratings should be, and the denser the grating displayed on the screen should be; the worse the user's eyesight, the smaller the spatial frequency value of the grating displayed to the user should be, the larger the width value of a single grating or the average value of the width values ​​of multiple gratings should be, and the sparser the grating displayed on the screen should be. Only in this way can the treatment principle of grating therapy be met.

[0051] It should be noted that, taking the order of vision values ​​in the standard logarithmic vision chart as an example, in optometry, the sight mark corresponding to the user's best vision value 1-2 lines upward (1-2 lines upward is equivalent to the vision value reduced by 1-2 levels, and the size of the sight mark is larger) is usually used as a comfortable reading sight mark. Among them, the sight mark corresponding to the user's best vision value 2 lines upward (the vision value after the best vision value is reduced by 2 levels) is often used for the detection of various visual functions, and the sight mark corresponding to the user's best vision value 1 line upward (the vision value after the best vision value is reduced by 1 level) belongs to the standard that the user can see clearly but needs to watch carefully. Therefore, in the specific implementation, the adjusted vision value level range should not be too large, otherwise it will cause the width value of the displayed grating to differ too much from the size of the sight mark corresponding to the user's actual vision value. For the user, it means that the width value of the displayed grating is too large and the spatial frequency of the grating is too small, so that the purpose of effective training cannot be achieved, affecting the treatment effect.

[0052] In a preferred embodiment, the value of the preset level can be set to 1, that is, based on the user's vision value, a grating corresponding to the vision value adjusted by 1 level is displayed to the user, with the purpose of displaying the grating to the user after the spatial frequency of the grating is reduced (after the width value of the grating is increased).

[0053] Reference Figure 2 , Figure 2 Schematic diagram of a standard logarithmic vision chart for determining a user's vision value in an embodiment of the present invention.

[0054] In the standard logarithmic vision chart, there is a positive correlation between the vision value and the vision value level: the larger the vision value, the higher the vision value level, the smaller the visual mark that the user can see clearly, and the better the user's vision.

[0055] In a specific implementation, if the user's best vision value is 4.2 in the table, a grating corresponding to a vision value of 4.1 reduced by one level is displayed to the user. At this time, the width value of the displayed grating is equal to Figure 2 The size of the sight mark corresponding to the intermediate visual acuity value of 4.1 is the same.

[0056] In another specific embodiment, if the user's best visual acuity is 4.2 in the table, a grating corresponding to a visual acuity value of 4.0 reduced by 2 levels is displayed to the user. At this time, the width value of the displayed grating is the same as Figure 2 The size of the sight mark corresponding to the intermediate visual acuity value of 4.0 is the same. The determination method of the grating width value and the sight mark size is described in the previous text and will not be repeated here.

[0057] Furthermore, before displaying to the user a grating corresponding to a vision value adjusted to a preset level according to the user's vision value, the method further includes: dividing the grating into different levels according to the spatial frequency of the grating, wherein gratings of different levels have corresponding spatial frequency ranges.

[0058] Furthermore, the type of the grating is selected from one or more of the following: cutscene grating, bonus level surface grating, treasure chest grating, and skill grating.

[0059] In a specific embodiment, the cutscene grating can be a 2D flat animation, similar to the background in a game scene, and the reward level surface grating, treasure chest grating and skill grating can be different elements in a 3D scene. The aforementioned four types of gratings can be presented in dynamic and / or static form.

[0060] Furthermore, the types of the gratings include transition gratings and / or bonus level ground surface gratings, wherein when the transition gratings and / or the bonus level ground surface gratings are displayed in the same scene, the spatial frequency remains unchanged.

[0061] The reward level surface grating may be displayed on the screen as an element in a virtual scene, and its shape, color, and movement may be various, which are not limited here.

[0062] Furthermore, the type of the grating is a transition grating, wherein the transition grating can be a static black and white stripe grating and / or a dynamic black and white stripe grating with a contrast ratio of 100%, and is displayed on the screen as a background. In the embodiment of the present invention, by using the black and white stripe grating with a contrast ratio of 100%, the majority of cortical cell receptors affected in the amblyopic eye can be accurately stimulated, so that they can recover their functions and achieve the purpose of improving vision.

[0063] In some non-limiting embodiments, the transition grating can be displayed on the screen in the form of parallel horizontal lines of the shape of "1", or in the form of parallel vertical lines of the shape of "1", or in the form of parallel oblique lines, or in the form of parallel circular rings that spread from the inside to the outside. In addition to the above methods, it can also be displayed on the screen in other ways, and different display methods can be switched dynamically. The embodiment of the present invention does not limit the method of displaying the transition grating on the screen as a background.

[0064] In some non-limiting embodiments, when the transition grating is a linear dynamic black and white stripe grating with 100% contrast, the dynamic motion mode can be selected from: translation from left to right, translation from right to left, translation from top to bottom, and translation from bottom to top; when the transition grating is a circular dynamic black and white stripe grating with 100% contrast, the dynamic motion mode can be selected from: translation from the periphery to the center of the circle, translation from the center to the periphery of the circle, and rotation. In addition to the above methods, other methods can also be used for dynamic motion, and different dynamic motion methods can be switched. The embodiment of the present invention does not limit the dynamic motion mode of the transition grating.

[0065] Furthermore, the types of the grating include treasure chest gratings and / or skill gratings, wherein, when the treasure chest gratings and / or the skill gratings are displayed in the same scene, the spatial frequencies of the treasure chest gratings and / or the skill gratings will dynamically increase and / or decrease starting from the spatial frequencies within the corresponding spatial frequency range, and the treasure chest gratings and / or the skill gratings are displayed on the screen as elements in the virtual scene.

[0066] In a specific implementation, the treasure chest grating and / or the skill grating can be different elements in a 3D virtual scene, and their shapes, colors, and movement modes can be diverse, which are not limited here. In addition, compared with the cutscene grating and the reward level surface grating described above, the treasure chest grating and / or the skill grating can adopt a strategy of starting from small to large due to their faster movement speed and lower contrast relative to black and white gratings, and the overall thickness is slightly enlarged, that is, the spatial frequency of the treasure chest grating and / or the spatial frequency of the skill grating can be dynamically increased starting from the spatial frequency within the corresponding spatial frequency range. Among them, the treasure chest grating and / or the skill grating.

[0067] Reference Figure 3 , Figure 3 It is a schematic diagram of a training scene of a transition grating in an embodiment of the present invention.

[0068] The transition grating A is a black and white grating with 100% contrast, and is displayed on the screen as a background of the virtual scene in the form of multiple parallel oblique lines from right to left. The display mode of the transition grating A can be switched between dynamic and static; when set to dynamic display, it can be set to translate in different directions, and the speed of translation can also be set according to different training needs. A plurality of static and / or dynamic virtual objects of different shapes are displayed above the transition grating A. For the content of the virtual objects, please refer to the relevant description below, which will not be repeated here.

[0069] In an embodiment of the present invention, the spatial frequency of the grating is accurately graded in advance and matched one-to-one with different levels of vision values, and then vision training is performed by matching the gratings of corresponding levels according to the vision values ​​of different users; in addition, when the gratings are displayed to the user, the types and presentation methods of the gratings are rich and varied, so that the retinal visual cells of the eye to be trained can be stimulated during the training process, thereby improving the accuracy and effectiveness of the vision training and increasing the interest of the training process.

[0070] Furthermore, the vision training method also includes: displaying color light of preset contrast to the user, wherein the color light is selected from one or more of the following: static color light and dynamic color light; wherein the color light is integrated into a virtual scene and displayed to the user.

[0071] Furthermore, the colored light is selected from one or more of the following: red light, and colored light obtained by mixing red light and at least one other basic colored light in a preset ratio.

[0072] The basic color light can also be called the three primary colors of optics, which are the three most basic colors. The so-called primary colors, also called base colors, are the basic colors that can be used to mix other colors. The primary colors have the highest color purity, are the purest, and are the most vivid. They can be mixed into most colors, while other colors cannot be mixed into the three primary colors.

[0073] It should be pointed out that since the macular area of ​​the human retina only contains cones, which are more sensitive to red light, red light stimulation helps to stimulate the sensitivity of cones in the fundus. Therefore, in specific implementation, when mixing the above three basic colors of light, the proportion of red light is appropriately increased to maximize the retinal sensitivity of the amblyopic eye.

[0074] In a specific implementation, the preset ratio may be 100%, 0, 0, that is, only red light is used for training.

[0075] In a second specific implementation manner, the preset ratio may be 50%, 25%, and 25%.

[0076] In a third specific implementation manner, the preset ratio may be 80%, 20%, or 0.

[0077] In addition to the above three preset ratios, other ratios may be set according to actual training and treatment needs, which is not limited in the embodiment of the present invention.

[0078] Furthermore, when the color light of preset contrast is displayed to the user, the display mode is selected from one or more of the following: flashing, translation, rotation, appearing from dark to light, disappearing from light to dark, gradual enlargement, and gradual reduction.

[0079] It should be noted that the above-listed display modes are only some non-limiting embodiments of the present invention and are not intended to limit the color light display mode. In specific implementations, the color light can be displayed to the user in various other ways while maximizing the training effect and without causing undue stimulation to the user's eyes. The color of the color light and different display modes can be alternated or switched during display.

[0080] In the embodiment of the present invention, compared with the existing red light stimulation therapy that directly uses the red light emitted by the light-emitting diode as the light source to stimulate the amblyopic eye, the type and presentation form of the color light are single and the training process is relatively boring. The innovation of the technical solution adopted in the embodiment of the present invention lies in: integrating various high-contrast static and / or dynamic color lights into the virtual scene, and designing different presentation methods. The color and display method of the color light can be alternated or switched, which can effectively stimulate the cone cells, activate the visual system, and promote visual development, thereby improving the effectiveness of the training results, and can also improve the fun of the training process and increase the attractiveness to users, especially children.

[0081] Furthermore, the vision training method also includes: displaying a plurality of virtual objects corresponding to a preset level of reduced vision value to the user according to the user's vision value, wherein the virtual objects are selected from one or more of the following: static virtual objects and dynamic virtual objects; wherein the size of the virtual objects has a preset one-to-one correspondence with the vision value.

[0082] Specifically, the corresponding relationship between the size of the virtual object and the vision value may be: for each vision value, the size of the corresponding virtual object is the same as the size of the sight mark corresponding to the vision value.

[0083] Reference Figure 2 The standard logarithmic visual acuity chart shown in FIG. 1 shows that when the user's visual acuity is 4.0, the size of the virtual object corresponding to the visual acuity is Figure 2 The visual mark size of the row with a visual acuity value of 4.0 is the same as that of the row with a visual acuity value of 4.0; when the user's visual acuity value is 4.3, the size of the virtual object corresponding to the visual acuity value is the same as that of the row with a visual acuity value of 4.0. Figure 2 The visual mark sizes of the rows containing the vision values ​​in 4.3 are the same, wherein the vision values ​​of the above-mentioned users all refer to the best vision values ​​of the users measured using the standard logarithmic vision chart.

[0084] It should be pointed out that, as mentioned above, taking the order of vision values ​​in the standard logarithmic vision chart as an example, in optometry, the sight mark corresponding to the user's best vision value 2 rows above is often used for the detection of various visual functions, and the sight mark corresponding to the user's best vision value 1 row above belongs to the standard that the user can see clearly but needs to watch carefully. Therefore, in order to ensure that the user can see the virtual object clearly with an effort, rather than trying very hard to see it clearly, in the specific implementation, the reduced vision value level range should not be too large, otherwise it will cause the size of the displayed virtual object to be much larger than the size of the sight mark corresponding to the user's actual vision value. For the user, it means that the size of the displayed virtual object is too large, which violates the basic principle of fine vision training and reduces the training effect.

[0085] In a preferred embodiment, the value of the preset level can be set to 1, that is, according to the user's vision value, a virtual object corresponding to a vision value reduced by one level is displayed to the user. Specifically, the size of the virtual object is increased by one level and then displayed to the user.

[0086] In some non-limiting embodiments, the size determination method of the virtual object can be selected from: for a regular cube virtual object, the side length of the cube is used as the size of the virtual object; for a regular rectangular virtual object, the average of the length and width of the rectangular is used as the size of the virtual object; for a regular circular or spherical virtual object, the radius is used as the size of the virtual object; for virtual objects of various other irregular shapes, multiple appropriate edge points can be selected, and the average of the length of the line between the two edge points is used as the size of the virtual object. In specific implementations, other reasonable methods can also be used to determine the sizes of different virtual objects, and the embodiments of the present invention are not limited to this.

[0087] Furthermore, the virtual object is selected from one or more of the following: numbers, letters, virtual animals, virtual plants, virtual characters, virtual monsters, virtual weapons, and virtual treasure chests.

[0088] The above-mentioned display modes are only some non-limiting embodiments of the present invention and are not intended to limit the types of virtual objects. In specific implementations, various game elements in the game scene can be referred to to design other various virtual objects to be displayed to the user with the goal of improving the visual training effect and the fun of the training process.

[0089] Specifically, the shapes, colors, and dynamic movements of various virtual objects may also be diversified. For details, please refer to the previous descriptions about gratings and colored lights, which will not be repeated here.

[0090] In the embodiments of the present invention, compared with the existing fine vision training method, which trains amblyopic patients by threading needles and beads, etc., the process is cumbersome, boring and inconvenient. The embodiments of the present invention use the user's vision value reduced by a preset level as the limit resolution vision, and design virtual objects of corresponding sizes to display to the user. The types of virtual objects are rich and the presentation forms are diverse, so that the purpose of fine vision training can be achieved everywhere. The training process is more convenient and interesting, which is conducive to increasing the cooperation of users, especially children, and improving the treatment effect.

[0091] Reference Figure 4 , Figure 4 4 is a flow chart of a second vision training method according to an embodiment of the present invention. The second vision training method may include steps S41 to S42, and each step is described below.

[0092] In step S41, the user's eyesight value is determined.

[0093] In step S42, a grating corresponding to the vision value reduced by a preset level is displayed to the user according to the vision value of the user, wherein the larger the vision value of the user is, the higher the vision value level is and the better the vision is, and the larger the spatial frequency range value of the corresponding grating is.

[0094] Further, according to the user's vision value, the grating corresponding to the vision value after the preset level is reduced is displayed to the user, including: for a vision value of 4.7, a grating with a width value greater than or equal to 0.4% and less than or equal to 0.6% is displayed; for a vision value of 4.6, a grating with a width value greater than 0.6% and less than or equal to 0.7% is displayed; for a vision value of 4.5, a grating with a width value greater than 0.7% and less than or equal to 0.9% is displayed; for a vision value of 4.4, a grating with a width value greater than 0.9% and less than or equal to 1.1% is displayed; for a vision value of 4.3 , the display width value accounts for a grating greater than or equal to 11.2% and less than or equal to 1.3%; for a visual acuity value of 4.2, the display width value accounts for a grating greater than or equal to 1.5% and less than or equal to 1.6%; for a visual acuity value of 4.1, the display width value accounts for a grating greater than or equal to 1.8% and less than or equal to 2.0%; for a visual acuity value of 4.0, the display width value accounts for a grating greater than 2.0% and less than or equal to 2.5%; wherein the width value ratio is used to indicate: the ratio of the width value of the grating to the screen length value, or the ratio of the width value of the grating to the screen width value.

[0095] In a non-limiting embodiment, the device used by the user for vision training is a conventional tablet computer with a size of 232.6mm×145.4mm, and 400mm is used as the detection distance and training distance. After detection, the user's vision value is 4.2, then the width value range of the grating displayed to the user during training is: greater than or equal to 3.5mm and less than or equal to 3.7mm, wherein 232.6×1.5%≈3.5, 232.6×1.6%≈3.7; the spatial frequency range of the grating is: greater than or equal to 135.1 cycles / meter and less than or equal to 142.9 cycles / meter, wherein 1÷(3.7×2)×1000≈135.1, 1÷(3.5×2)×1000≈142.9.

[0096] In the specific implementation, for more details about steps S41 to S42, please refer to the above and Figures 1 to 3 The relevant descriptions in the description are executed and will not be repeated here.

[0097] Reference Figure 5 , Figure 5It is a table diagram of a one-to-one correspondence between visual acuity values ​​and the spatial frequency range of the grating in an embodiment of the present invention.

[0098] Among them, the screen size of the display device is 232.6mm×145.4mm, and the distance between the user and the screen of the display device during vision training is 400mm; the numerical value and arrangement order of the vision value are based on the 5-point recording method in the standard logarithmic vision chart.

[0099] When the user's visual acuity value is 4.7, a grating with a spatial frequency of about 416.67 cycles / meter and a width of about 1.2 mm is displayed to the user;

[0100] When the visual acuity value of the user is 4.6, a grating with a spatial frequency of about 333.33 cycles / meter and a width of about 1.5 mm is displayed to the user;

[0101] When the user's visual acuity is 4.5, a grating with a spatial frequency of about 263.16 cycles / meter and a width of about 1.9 millimeters is displayed to the user;

[0102] When the visual acuity value of the user is 4.4, a grating with a spatial frequency of about 217.39 cycles / meter and a width of about 2.3 mm is displayed to the user;

[0103] When the user's visual acuity value is 4.3, a grating with a spatial frequency of about 172.41 cycles / meter and a width of about 2.9 mm is displayed to the user;

[0104] When the user's visual acuity value is 4.2, a grating with a spatial frequency of about 138.89 cycles / meter and a width of about 3.6 mm is displayed to the user;

[0105] When the visual acuity value of the user is 4.1, a grating with a spatial frequency of about 113.64 cycles / meter and a width of about 4.4 mm is displayed to the user;

[0106] When the user's visual acuity value is 4.0, a grating having a spatial frequency of approximately 86.21 cycles / meter and a width value of approximately 5.8 mm is displayed to the user.

[0107] It should be pointed out that in a specific implementation, the width value of the grating can be fine-tuned (increased or decreased by a certain value) within the corresponding width value ratio range according to different types of gratings or different training scenarios (such as different virtual scenes).

[0108] Reference Figure 6 , Figure 6 : is a schematic diagram of the structure of a vision training device in an embodiment of the present invention. The vision training device may include:

[0109] A user vision value determination module 61, used to determine the user's vision value;

[0110] The vision training module 62 is used to display a grating corresponding to the vision value adjusted to a preset level to the user according to the user's vision value during the vision training process; wherein there is a preset one-to-one correspondence between the spatial frequency range of the grating and the vision value.

[0111] For the principle, specific implementation and beneficial effects of the vision training device, please refer to the previous article and Figures 1 to 5 The related description about the vision training method shown is not repeated here.

[0112] The embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned vision training method are executed. The computer-readable storage medium may include a non-volatile memory or a non-transitory memory, and may also include an optical disk, a mechanical hard disk, a solid-state hard disk, etc.

[0113] Specifically, in the embodiment of the present invention, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0114] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM) and direct rambus RAM (DR RAM).

[0115] The embodiment of the present invention further provides a terminal, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the vision training method when running the computer program. The terminal may include but is not limited to terminal devices such as mobile phones, computers, and tablet computers, and may also be a server, a cloud platform, and the like.

[0116] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0117] The "plurality" appearing in the embodiments of the present application refers to two or more.

[0118] The first, second, etc. descriptions appearing in the embodiments of the present application are only used for illustration and distinction of the description objects. There is no order, nor do they indicate any special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

[0119] It should be pointed out that the serial numbers of the steps in this embodiment do not limit the execution order of the steps.

[0120] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A vision training device, It is characterized in that include: A user vision value determination module, used to determine the vision value of a user, wherein the user is a user suffering from amblyopia, and the vision value is the best vision value of the user; A vision training module, used for displaying to the user, during the vision training process, a grating corresponding to the vision value adjusted to a preset level according to the vision value of the user; wherein there is a preset one-to-one correspondence between the spatial frequency range of the grating and the vision value; The greater the vision value of the user, the higher the vision value level, and the better the vision of the user; The vision training module is further used to display to the user a grating corresponding to a vision value reduced by a preset level according to the vision value of the user, wherein the value of the preset level is 1 or 2; The larger the visual acuity value is, the larger the spatial frequency range value of the corresponding grating is; The type of the grating is selected from one or more of the following: a cutscene grating, a bonus level surface grating, a treasure chest grating, and a skill grating; The type of the grating is a transition grating, wherein the transition grating is a static black and white stripe grating and / or a dynamic black and white stripe grating with a contrast ratio of 100%, and is displayed on the screen as a background; The type of the grating includes a treasure chest grating and / or a skill grating, wherein when the treasure chest grating and / or the skill grating are displayed in the same scene, the spatial frequency of the treasure chest grating and / or the skill grating will dynamically increase and / or decrease starting from the spatial frequency within the corresponding spatial frequency range, and the treasure chest grating and / or the skill grating are displayed on the screen as elements in the virtual scene; The vision training device further performs: displaying color light of preset contrast to the user, wherein the color light is selected from one or more of the following: static color light and dynamic color light; wherein the color light is integrated into a virtual scene and displayed to the user, and the color and display mode of the color light can be alternated or switched; The vision training device also performs: displaying a plurality of virtual objects corresponding to the vision values ​​of a preset reduced level to the user according to the vision value of the user, wherein the virtual objects are selected from one or more of the following: static virtual objects and dynamic virtual objects; wherein the size of the virtual objects has a preset one-to-one correspondence with the vision value, and for each vision value, the size of the virtual object corresponding to it is the same as the size of the sight mark corresponding to the vision value, wherein a plurality of static virtual objects and / or dynamic virtual objects of different shapes are displayed above the transition grating.

2. The vision training device according to claim 1, It is characterized in that Displaying to the user a grating corresponding to a vision value reduced by a preset level according to the vision value of the user comprises: For a visual acuity value of 4.7, the display width value accounts for a grating greater than or equal to 0.4% and less than or equal to 0.6%; For a visual acuity value of 4.6, the proportion of displayed width values ​​is greater than 0.6% and less than or equal to 0.7% of the gratings; For a visual acuity value of 4.5, the display width value accounts for a grating greater than 0.7% and less than or equal to 0.9%; For a visual acuity value of 4.4, the percentage of displayed width values ​​is greater than 0.9% and less than or equal to 1.1% of the gratings; For a visual acuity value of 4.3, the display width value accounts for gratings greater than or equal to 11.2% and less than or equal to 1.3%; For a visual acuity value of 4.2, the display width value accounts for a grating greater than or equal to 1.5% and less than or equal to 1.6%; For a visual acuity value of 4.1, the display width value accounts for a grating greater than or equal to 1.8% and less than or equal to 2.0%; For a visual acuity value of 4.0, the display width value accounts for a grating greater than 2.0% and less than or equal to 2.5%; The width value ratio is used to indicate the ratio of the width value of the grating to the screen length value, or the ratio of the width value of the grating to the screen width value.

3. The vision training device according to claim 1, It is characterized in that Before displaying to the user a grating corresponding to the vision value adjusted to a preset level according to the vision value of the user, the vision training device further performs: The grating is divided into different levels according to the spatial frequency of the grating, wherein gratings of different levels have corresponding spatial frequency ranges.

4. The vision training device according to claim 3, It is characterized in that The types of the gratings include transition gratings and / or bonus level ground surface gratings, wherein the spatial frequency of the transition gratings and / or the bonus level ground surface gratings remains unchanged when they are displayed in the same scene.

5. The vision training device according to claim 1, It is characterized in that The color light is selected from one or more of the following: Red light, or colored light formed by mixing red light and at least one other basic colored light in a preset ratio.

6. The vision training device according to claim 1, It is characterized in that When displaying the color light of preset contrast to the user, the display mode is selected from one or more of the following: Flashing, shifting, rotating, appearing from dark to light, disappearing from light to dark, gradually zooming in, and gradually zooming out.

7. The vision training device according to claim 1, It is characterized in that The virtual object is selected from one or more of the following: Numbers, letters, virtual animals, virtual plants, virtual characters, virtual monsters, virtual weapons, virtual treasure chests.

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