Intelligent vision fixation training instrument and training method

Abstract

The invention discloses an intelligent vision fixation training instrument and a training method. The method comprises the following steps: generating two point light sources on a screen; automatically identifying pupils of the user, and judging the interpupillary distance; automatically tracking and correcting pupil positions of the user to enable the user to look at the point light source; automatically focusing and synchronously timing; if strabismus or blinking occurs after focusing, stopping the training, and refocusing and timing; if timing reaches a set value after focusing, stopping the training; three groups are trained each time, if the timing of the three groups of training reaches a set value, the three groups of training are judged to be qualified, otherwise, the three groups of training are judged to be unqualified, and the user is prompted to carry out the next fixation training after a period of time. The training instrument comprises a display, a front camera, a voice system, a focusing recognition system, an interpupillary distance calculation system, a timing system, a logic control system and an evaluation system which are connected through a bus. Training can be carried out under the prompt of intelligent voice, and the training result can be intelligently evaluated.

Description

Technical Field

[0001] This invention relates to the field of ophthalmic assistive device technology, specifically to an intelligent fixation training device and training method. Background Technology

[0002] Fixation training, or eye exercises that train the eyes to fixate on a point and remain still for a certain period of time, can improve the active cooperation of patients undergoing ocular surgery under topical anesthesia, effectively reduce intraoperative eye movement, achieve good surgical results and patient satisfaction, and is an important measure to reduce surgical complications. Studies have shown that fixation training techniques have a significant impact on the eye position of patients during examinations or surgeries such as laser-assisted in situ keratomileusis (LASIK), cataract surgery under topical anesthesia, iTrace wavefront aberration measurement, and corneal foreign body removal.

[0003] Currently, the main fixation training methods used in clinical practice involve using a finger, a red object, or a light source as a visual target. Patients are instructed to look at the target in a specific direction and maintain this fixation for 1-5 minutes, thus memorizing the sensation of maintaining that eye position. Fixation training devices (such as CN214910158U, CN219022136U, and CN216908541U) are also used in conjunction with these methods to achieve the desired training effect. However, current fixation training devices cannot automatically evaluate the training effect; a doctor's assessment is still required, and their use also requires a doctor's guidance (patients generally do not use these devices themselves). Furthermore, these devices only serve the purpose of fixation training and do not have multi-functional capabilities (e.g., to address other ophthalmic symptoms during fixation training). Summary of the Invention

[0004] Therefore, the present invention provides an intelligent fixation training device and training method to solve one or more of the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The first aspect of this invention provides an intelligent fixation training method, comprising:

[0007] Generate two point light sources on the screen;

[0008] Automatically identify the user's pupils and determine the interpupillary distance;

[0009] Automatically tracks and corrects the user's pupil position, ensuring the user looks directly at the point light source;

[0010] Automatic focus and synchronized timing;

[0011] If strabismus or blinking occurs after focusing, stop the training session and refocus and time the session for the next set of training; if the timer reaches the set value after focusing, stop the training session and start the next set of training after a certain period of time.

[0012] Each training session consists of three sets. If the timeout for all three sets reaches the set value, the training is considered successful; otherwise, it is considered unsuccessful, and the user is prompted to restart the fixation training after a certain interval.

[0013] Furthermore, an account must be registered and / or logged in before fixation training; based on the results of the previous training session corresponding to the account, it is determined whether the account meets the requirements to start a new training session or continue the previous incomplete training session, and the account is forcibly logged out if it does not meet the requirements.

[0014] Furthermore, during the training process, intelligent voice prompts provide users with the current operations or precautions that need to be taken.

[0015] Furthermore, if the timer reaches the set value of 20-60 seconds after focusing, the set time for starting the next training session after a certain interval is at least 5 minutes, and the interval for prompting the user to restart the next fixation training session after a certain interval is at least 30 minutes.

[0016] A second aspect of the present invention provides an intelligent fixation training device for implementing the fixation training method as described in the first aspect of the present invention, comprising:

[0017] A display used to generate two point light sources;

[0018] The front-facing camera is used to capture images of the user's eyes within a certain field of view in front of the display.

[0019] The focus recognition system intelligently identifies the user's pupils based on the user's eye images captured by the front-facing camera, automatically tracks and corrects the position of the user's pupils so that the user can look directly at the point light source and automatically focus;

[0020] The pupil distance calculation system calculates the pupil distance based on the pupils identified by the focusing recognition system.

[0021] The timing system is used to synchronize timing after the focus recognition system has focused.

[0022] The logic control system operates based on the following criteria: if strabismus or blinking occurs after focusing, the training session is stopped and refocused and timed for the next training session; if the timer reaches the set value after focusing, the training session is stopped and the next training session begins after a certain period of time.

[0023] The evaluation system is used to assess the results of fixation training, based on the following criteria: if the timing of all three training sessions reaches the set value, it is considered qualified; otherwise, it is considered unqualified, and the user is prompted to restart the fixation training after a certain interval.

[0024] Furthermore, the display is also used for registration and / or login; the logic control system is also used to determine whether the account meets the requirements for starting a new training or continuing the previous incomplete training based on the results of the previous training session corresponding to the account, and to force the account to exit if it does not meet the requirements.

[0025] Furthermore, the fixation training device also includes a voice system, which is used to prompt the user for the current operation or precautions that need to be performed.

[0026] Furthermore, if the timer reaches the set value of 20-60 seconds after focusing, the set time for starting the next training session after a certain interval is at least 5 minutes, and the interval for prompting the user to restart the next fixation training session after a certain interval is at least 30 minutes.

[0027] Furthermore, the focus recognition system is also used for blink statistics.

[0028] The present invention has the following advantages:

[0029] It can automatically identify, track, and correct pupil position, ensuring the user looks directly at a point light source. After automatic focusing, it synchronizes timing. During fixation training, it automatically makes logical judgments to proceed directly or after a certain interval to the next training session. After a single training session (three sessions), it intelligently evaluates the training results and prompts the user to restart the fixation training after a certain interval. Overall, it has a high degree of automation, requiring no doctor's judgment and saving medical resources. It can also intelligently determine whether fixation training is possible, preventing users from continuing training if they do not meet a certain time requirement (forced cancellation). It provides intelligent voice prompts, eliminating the need for a doctor's guidance on how to use it, further saving medical resources. It can also perform blink statistics, providing data for screening other eye diseases (such as dry eye syndrome). Attached Figure Description

[0030] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0031] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0032] Figure 1 This is a schematic diagram of an intelligent fixation training device provided in an embodiment of the present invention.

[0033] Figure 2 A flowchart of the intelligent fixation training method provided in an embodiment of the present invention. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0036] like Figure 1 As shown, this embodiment provides an intelligent fixation training device, which includes a display 10, a front-facing camera 20, a voice system 30, a focus recognition system 40, an interpupillary distance calculation system 50, a timing system 60, a logic control system 70, and an evaluation system 80 connected via a bus. The logic control system 70, also known as the control system, can be integrated with the focus recognition system 40, the interpupillary distance calculation system 50, the timing system 60, and the evaluation system 80 into a single processor. This processor runs relevant software and performs corresponding tasks according to relevant algorithms, such as pupil recognition using a pattern recognition algorithm, pupil locking using a tracking and aiming algorithm, and interpupillary distance calculation using a graphic analysis algorithm.

[0037] The display 10 is used to generate two point light sources on it. The position of the point light sources on the screen is controlled by the processor for subsequent focusing. The display 10 is also used to display a registration / login interface, which allows for online registration (by following the steps on the screen) or offline registration (by scanning the QR code on the screen and registering via a mobile device). In addition, the display 10 can also allow selection of "fixation training" and "blink statistics" on the initial interface.

[0038] The front-facing camera 20 is used to capture images of the user's eyes within a certain field of view in front of the display 10. The image resolution of the front-facing camera 20 meets certain requirements, such as supporting pattern recognition algorithms for pupil recognition, tracking and aiming algorithms for pupil locking, and image analysis algorithms for calculating interpupillary distance.

[0039] The voice system 30 is used to prompt the user for the current operation or precautions. For example, when two point light sources are displayed on the screen, the voice prompt is "Please look at the screen light source" to identify the pupil area. After the pupil is identified, the voice prompt is "Please look directly at the screen light source" to track and focus. After focusing, the voice prompt is "Please look directly at the screen light source, do not blink, time n seconds". When a training session ends, the voice prompt is "Please close your eyes and rest for N minutes".

[0040] The focus recognition system 40 can intelligently recognize the user's pupils based on the user's eye images captured by the front-facing camera 20. It can automatically track and correct the position of the user's pupils (the direction of the eyeball after rotation, mainly the direction of the pupil) so that the user can look directly at the point light source and automatically focus.

[0041] The pupil distance calculation system 50 can calculate the pupil distance based on the pupil identified by the focus recognition system 40.

[0042] The timing system 60 starts timing synchronously after the focusing recognition system 40 focuses. In addition, when "blink statistics" is selected on the interface, the timing system 60 starts timing for 30 seconds to 3 minutes, during which the focusing recognition system 40 counts the number of blinks (if the pupil cannot be detected after blinking, it is counted as one blink), providing data support for the screening of dry eye syndrome.

[0043] The logic control system 70 operates based on the following criteria: if strabismus or blinking occurs after focusing, the training session is stopped, and refocusing and timing begin for the next training session; if the timing reaches a set value (20-60 seconds, typically 60 seconds, but can also be set to 30, 40, or 50 seconds, etc.) after focusing, the training session is stopped, and the next training session begins after a certain interval (generally at least 5 minutes). When a user logs in, the logic control system 70 analyzes the results of the previous training session for that account. If the previous training session for that account was not yet completed (one training session consists of three sets, and the account was disconnected and re-logged in for some reason), the incomplete training can continue; if the previous training session for that account was completed and less than 30 minutes have passed since then, the account is forcibly logged out, and the user cannot train again to avoid excessive training and potential damage to the eyes.

[0044] The evaluation system 80 is used to assess fixation training results based on the following criteria: if the timing of all three training sessions reaches the set value, it is considered qualified; otherwise, it is considered unqualified, and the user is prompted to restart the fixation training after a certain interval (at least 30 minutes).

[0045] It can automatically identify, track, and correct pupil position, ensuring the user looks directly at a point light source. After automatic focusing, it synchronizes timing. During fixation training, it automatically makes logical judgments to proceed directly or after a certain interval to the next training session. After a single training session (three sessions), it intelligently evaluates the training results and prompts the user to restart the fixation training after a certain interval. Overall, it has a high degree of automation, requiring no doctor's judgment and saving medical resources. It can also intelligently determine whether fixation training is possible, preventing users from continuing training if they do not meet a certain time requirement (forced cancellation). It provides intelligent voice prompts, eliminating the need for a doctor's guidance on how to use it, further saving medical resources. It can also perform blink statistics, providing data for screening other eye diseases (such as dry eye syndrome).

[0046] This embodiment also provides an intelligent fixation training method, using the aforementioned fixation training device, such as... Figure 2 As shown, it includes the following steps:

[0047] Step S1: Register / Log in.

[0048] Step S2: Two point light sources are generated on the screen to simulate the central area of ​​the left and right eyes; at the same time, the front-facing camera captures images of the user's eyes.

[0049] Step S3: Following the prompt "Please look at the screen light source" played by the voice system, fix your eyes on the two point light sources respectively.

[0050] Step S4: The focusing recognition system automatically identifies the user's pupils, and the pupillary distance calculation system automatically determines the pupillary distance.

[0051] Step S5, the focusing recognition system automatically tracks and corrects the user's pupil position to make the user look directly at the point light source.

[0052] Step S6, the focusing recognition system automatically focuses, and at the same time the timing system starts timing.

[0053] Step S7, the logic control system performs logic control according to the following criteria: if squinting or blinking occurs after focusing, stop the current training and refocus and time again to conduct the next set of training; if the timing reaches the set value (such as 20 - 60 s, generally 60 s, and can also be set at 30 s, 40 s or 50 s, etc.) after focusing, stop the current training, and start the next set of training after a certain period of time (generally at least 5 min).

[0054] Step S8, the evaluation system evaluates the results of the fixation training. A total of three groups of training are conducted each time. If the timing of all three groups of training reaches the set value, it is determined as qualified; otherwise, it is determined as unqualified, and it is prompted that the user needs to conduct the next fixation training again after a certain period of time (generally at least 30 min).

[0055] ">Correspondingly, before the fixation training, the user needs to register and / or log in to the account. After logging in to the account, the logic control system determines whether the account meets the requirements for starting a new training or continuing the previous uncompleted training based on the results of the previous set of training corresponding to the account. For those that do not meet the requirements (for example, the previous training of this account has been completed and it has been less than 30 min since the previous completion of the training), the account will be forced to log out.

[0056] During the training process, the intelligent voice prompts the user for the current operation or matters needing attention, and the voice prompt runs through the entire training process.

[0057] Although the present invention has been described in detail with general descriptions and specific embodiments above, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. An intelligent fixation training method, characterized in that, include: Generate two point light sources on the screen; Automatically identify the user's pupils and determine the interpupillary distance; Automatically tracks and corrects the user's pupil position, ensuring the user looks directly at the point light source; Automatic focus and synchronized timing; If strabismus or blinking occurs after focusing, stop the training session and refocus and time the session for the next set of training; if the timer reaches the set value after focusing, stop the training session and start the next set of training after a certain period of time. Each training session consists of three sets. If the timeout for all three sets reaches the set value, the training is considered successful; otherwise, it is considered unsuccessful, and the user is prompted to restart the fixation training after a certain interval.

2. The intelligent fixation training method according to claim 1, characterized in that, Before starting fixation training, register and / or log in to your account; based on the results of the previous training session, determine whether the account meets the requirements to start a new training session or continue the previous unfinished training session; if the requirements are not met, force the account to log out.

3. The intelligent fixation training method according to claim 1, characterized in that, During training, intelligent voice prompts provide users with the current operations or precautions that need to be taken.

4. The intelligent fixation training method according to claim 1, characterized in that, If the timer reaches the set value of 20-60 seconds after focusing, the set time for starting the next training session after a certain interval is at least 5 minutes, and the interval for prompting the user to restart the next fixation training session after a certain interval is at least 30 minutes.

5. An intelligent fixation training device, characterized in that, The method for implementing the fixation training method as described in any one of claims 1-4 includes: A display used to generate two point light sources; The front-facing camera is used to capture images of the user's eyes within a certain field of view in front of the display. The focus recognition system intelligently identifies the user's pupils based on the user's eye images captured by the front-facing camera, automatically tracks and corrects the position of the user's pupils so that the user can look directly at the point light source and automatically focus; The pupil distance calculation system calculates the pupil distance based on the pupils identified by the focusing recognition system. The timing system is used to synchronize timing after the focus recognition system has focused. The logic control system operates based on the following criteria: if strabismus or blinking occurs after focusing, the training session is stopped and refocused and timed for the next training session; if the timer reaches the set value after focusing, the training session is stopped and the next training session begins after a certain period of time. The evaluation system is used to assess the results of fixation training, based on the following criteria: if the timing of all three training sessions reaches the set value, it is considered qualified; otherwise, it is considered unqualified, and the user is prompted to restart the fixation training after a certain period of time.

6. The intelligent fixation training device according to claim 5, characterized in that, The display is also used for registration and / or login; the logic control system is also used to determine whether the account meets the requirements for starting a new training or continuing the previous incomplete training based on the results of the previous training session corresponding to the account, and to force the account to exit if it does not meet the requirements.

7. The intelligent fixation training device according to claim 5, characterized in that, The fixation training device also includes a voice system, which is used to prompt the user for the current operation or precautions.

8. The intelligent fixation training device according to claim 5, characterized in that, If the timer reaches the set value of 20-60 seconds after focusing, the set time for starting the next training session after a certain interval is at least 5 minutes, and the interval for prompting the user to restart the next fixation training session after a certain interval is at least 30 minutes.

9. The intelligent fixation training device according to claim 5, characterized in that, The focus recognition system is also used for blink statistics.

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