VR Dynamic Visual Acuity Testing With Eye-Tracking Adaptation
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Solution Overview
Problem
Traditional visual assessment methods are limited to professional settings and do not allow for dynamic adjustment of test parameters, leading to less accurate assessments and lack of accessibility for at-home vision testing using household devices.
Innovation Solution
Implementing a virtual reality-based vision test using a head-mounted display and camera to generate a customizable 3D environment, track eye movements, and evaluate visual acuity and perception through dynamic real-world scenarios, simulating various conditions to assess eye health conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional visual assessment methods are used in clinical settings with specialized equipment, then measurement precision is improved, but ease of operation and accessibility deteriorate due to limited availability and professional setting requirements
Solution Approach 1:
The patent creates a virtual copy of the clinical vision testing environment using VR technology. The system replicates standardized visual acuity charts, peripheral vision fields, and other diagnostic tools within a virtual reality space, allowing patients to perform comprehensive eye exams at home using consumer-grade HMDs while maintaining the measurement precision of clinical settings.
Solution Approach 2:
The vision assessment system is designed to perform multiple diagnostic functions through a single VR platform. It can conduct visual acuity tests, peripheral vision assessments, color blindness detection, and eye movement analysis all within one system, making professional-grade multi-functional eye care accessible to consumers without requiring multiple specialized devices or clinical visits.
2Adaptability or versatility
If fixed test parameters are used in traditional methods, then device complexity is reduced, but adaptability deteriorates due to inability to dynamically adjust to individual patient needs
Solution Approach 1:
The VR vision assessment system implements dynamic test parameters that can be adjusted in real-time based on patient performance and specific diagnostic needs. The system automatically modifies visual stimulus size, contrast, duration, and presentation timing during the exam, adapting to each patient's visual capabilities without requiring manual reconfiguration of the device or complex setup procedures.
3Measurement precision
If comprehensive eye exams are conducted with multiple test types, then measurement precision is improved, but loss of time increases due to lengthy testing procedures
Solution Approach 1:
The VR eye exam system maintains continuous testing throughout the session without the interruptions typical of traditional methods. Visual stimuli are presented continuously with automated transitions between test types, eliminating the need for patients to physically move between different examination stations or wait for manual setup changes. The system continuously collects data across multiple diagnostic domains simultaneously, completing comprehensive assessments in a single uninterrupted session.
Data Source
AI summary
A virtual eye test for evaluating dynamic visual acuity can be conducted in a virtual reality (VR) environment. The test utilizes an electronic device equipped with a head-mounted display (HMD) and a camera. The device generates a VR user interface corresponding to a three-dimensional virtual environment and renders it on the HMD. Real-world motion and target recognition visual tasks are simulated within the VR interface. Using the camera, the device tracks eye movements and response times to visual stimuli presented during these tasks. Dynamic visual acuity is measured based on the tracked eye movements and response times, providing a comprehensive assessment of visual performance in motion-based scenarios.