VR Visual Field Inspection Using Head-Mounted Display
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Solution Overview
Problem
Current eye examination methods for visual field inspections are subjective, time-consuming, and costly due to the reliance on expensive equipment and manual analysis, leading to inefficiencies and reduced accuracy, particularly in determining ophthalmic diseases.
Innovation Solution
A virtual reality-based system using a head-mounted display for visual field inspections, which includes outputting background images, focus points, and indicators to measure reaction speed and sensitivity, providing real-time data processing through an ophthalmic examination service provider server to improve accuracy and reduce examination time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual examination methods using expensive eye examination equipment are used, then measurement precision can be maintained, but device complexity and cost increase significantly
Solution Approach 1:
The patent uses a head-mounted display to present visual stimuli and capture eye movement data, creating a simplified copy of the visual field inspection process that eliminates the need for complex traditional examination equipment while maintaining measurement accuracy through digital tracking and analysis
Solution Approach 2:
The patent replaces mechanical examination equipment with a software-based system that uses a head-mounted display to present stimuli and sensors to track eye movements, substituting physical examination devices with electronic and software components that reduce overall system complexity
2Measurement precision
If manual analysis of examination information is performed, then measurement precision can be maintained, but loss of time increases due to slow processing
Solution Approach 1:
The system continuously tracks eye movement data in real-time and provides immediate feedback to determine visual field defects, enabling rapid automated analysis that maintains diagnostic accuracy while significantly reducing the time required compared to manual examination information analysis
Solution Approach 2:
The system performs automated analysis of eye movement data using embedded algorithms that independently process the examination information and generate diagnostic results without requiring manual intervention, thereby eliminating the time loss associated with examiner analysis while preserving measurement precision
3Measurement precision
If fixed position examination is required, then measurement precision can be maintained, but ease of operation deteriorates due to stiffened examination environment
Solution Approach 1:
The system transitions from a static fixed-position examination to a dynamic mobile examination environment where the head-mounted display can be worn and moved freely, maintaining measurement precision through continuous eye movement tracking while significantly improving examinee comfort and ease of operation
4Measurement precision
If repeated light tuning is performed during visual field inspection, then measurement precision can be maintained, but loss of time increases due to multiple measurements
Solution Approach 1:
The system continuously tracks eye movements and processes visual field data in real-time as the examinee views the displayed content, eliminating the need for repeated discrete light tuning measurements and reducing inspection duration while maintaining sensitivity threshold accuracy through continuous data collection and analysis
Data Source
AI summary
A method for virtual reality-based visual field inspection according to an embodiment is a method that performs a visual field inspection on a head-mounted display. The method includes: outputting a background including a background image and a focus point image; outputting an indicator on the background; and sensing user input from an examinee according to output of the indicator.