VR Headset Cover-Uncover Test System
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Solution Overview
Problem
Traditional cover/uncover eye tests are limited by the inability of eye-care professionals to observe the position of the eye while it is covered and lack sufficient resolution for accurate diagnosis and tracking of eye conditions.
Innovation Solution
A virtual reality or augmented reality headset-based system that uses eye tracking and visible light displays to simulate the cover/uncover test, allowing precise recording of eye positions and movements, enabling improved sensitivity and consistency in diagnosing strabismus and amblyopia.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional opaque occluder is used to cover one eye during the test, then the eye is effectively blocked from view, but the eye-care professional cannot observe the position of the covered eye while it is occluded
Solution Approach 1:
The patent replaces the traditional mechanical opaque occluder with a digital display-based occlusion system. The display device shows a fixation target to one eye while presenting an occluding pattern (such as a covered fixation target) to the other eye, eliminating the need for physical occluders and enabling continuous observation of both eyes through the display
Solution Approach 2:
The display device acts as an intermediary between the patient's eyes and the observer. It presents different visual information to each eye independently, allowing the system to observe and record eye positions and movements that would otherwise be hidden by traditional occluders
2Measurement precision
If manual observation by an eye-care professional is used, then the test can be performed with simple equipment, but the observations lack sufficient resolution and detail for accurate diagnosis and tracking
Solution Approach 1:
The system incorporates feedback mechanisms where the display device continuously monitors and responds to eye position and movement. The system presents fixation targets and occluding patterns based on real-time eye tracking data, enabling precise measurement and quantification of eye movements that manual observation cannot achieve
Solution Approach 2:
The patent transitions from two-dimensional manual observation to multi-dimensional digital measurement and recording. The system captures eye position, movement velocity, acceleration, and temporal patterns, adding multiple dimensions of measurement precision beyond what human observation can provide
3Reliability
If traditional manual testing methods are used, then the test procedure is simple to perform, but the sensitivity and consistency of results vary by practitioner
Solution Approach 1:
The system performs the testing function automatically through programmed sequences presented on the display device. The computer-controlled presentation of fixation targets and occluding patterns eliminates practitioner variability, providing consistent and reliable results while reducing the operational burden on the eye-care professional
Data Source
AI summary
Virtual reality, VR, headset-based and augmented reality, AR, headset-based electronic systems that can be used to perform cover/uncover tests. The systems may improve the sensitivity, consistency, and ease of application of the cover/uncover test. Other aspects are also described.