VR Headset Strabismus Compensation via Eye Tracking
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Solution Overview
Problem
Current strabismus treatment methods are complex, imprecise, and require specialist intervention, while virtual reality head-mounted displays do not adequately accommodate individuals with vision disorders like strabismus.
Innovation Solution
A head-mounted display device with integrated strabismus treatment, comprising a display unit, detecting unit, processing module, and graphic simulation unit, which displays test images, detects deviation angles, and outputs compensated images to align the user's vision, using a prism diopter simulation system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional strabismus tests (Hirschberg test, cover-uncover test, prism cover test) are used, then the deviation angle can be measured, but the tests are complicated to perform, imprecise, prolonged, and require specialist intervention
Solution Approach 1:
The patent replaces the mechanical and manual test procedures (prism bars, physical covers, specialist manipulation) with an automated image processing system using cameras, LEDs, and computer algorithms to detect eye position and calculate deviation angles automatically
Solution Approach 2:
The system enables self-testing by the user without requiring a specialist to perform the test. The user simply looks at the test image on the display, and the system automatically captures images, processes them, and provides the deviation angle measurement
2Measurement precision
If traditional strabismus tests are used, then the deviation angle can be measured, but the tests are prolonged and require patient cooperation
Solution Approach 1:
The system uses periodic flashing LEDs to guide the user's eye movements and capture multiple images at different positions, enabling rapid automated measurement without prolonged testing
Solution Approach 2:
The system pre-programs the test images and LED sequences to automatically guide the testing process, eliminating the need for real-time specialist intervention and reducing test duration
3Adaptability or versatility
If virtual reality head-mounted displays are used, then immersive experience is provided, but suitable images are not provided for people with poor vision like strabismus patients
Solution Approach 1:
The system changes the parameters of the displayed images based on the measured deviation angle, applying compensatory transformations to ensure that text and graphics are properly aligned for strabismus patients when viewed through the VR head-mounted display
Solution Approach 2:
The system uses the measured deviation angle as feedback to automatically adjust and compensate the image parameters, creating customized visual output that is suitable for each user's specific strabismus condition
Data Source
AI summary
The invention is a virtual reality head-mounted display device with built-in strabismus treatment and operation method thereof. The head-mounted display device detects the motion of the user's eyes to get a compensated angle for strabismus. The processing module can generate a compensated image by a compensated angle for the user. While virtual reality devices are operating, our proposed head-mounted display device automatically detects the movement of the user's eyes and increases or decreases the correction effect of the simulated prism diopter lens. The user uses the device for a long time that can reduce the user's strabismus degree and achieve visual correction and treatment.