Visual Field Test System Using Computing Device Display
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Solution Overview
Problem
Current visual function tests for detecting glaucoma are limited by their subjective nature, requirement for specialized equipment, and operator dependency, which can lead to inaccurate results and barriers to access, especially for undiagnosed cases.
Innovation Solution
A method and system for performing a subjective visual field test using a computing device to access a dedicated visual field test server, allowing users to evaluate their monocular peripheral vision without professional supervision, using test images with targets that are presented in the peripheral visual field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If clinical visual field tests are performed with specialized equipment and professional supervision, then measurement precision is improved, but device complexity and ease of operation worsen
Solution Approach 1:
The patent uses a computing device display to present visual field test targets and records user responses, creating a simplified copy of the clinical perimetry test. The system replicates the essential functionality of specialized equipment using readily available computing devices, thereby reducing device complexity while maintaining the core testing capability
Solution Approach 2:
The patent replaces the mechanical and optical complexity of clinical perimetry equipment with a software-based system running on a computing device. The display device presents visual targets and the processor analyzes responses, substituting physical measurement instruments with computational methods that achieve similar diagnostic purposes
2Measurement precision
If clinical visual field tests are performed with professional supervision, then measurement precision is improved, but ease of operation worsens
Solution Approach 1:
The system enables users to perform visual field tests independently without requiring professional supervision. The computing device presents test instructions, displays visual targets, records user responses, and processes results automatically, allowing individuals to conduct their own visual function assessment at home or in non-clinical settings
Solution Approach 2:
The patent utilizes a computing device with display and processor that can perform multiple functions including presenting visual targets, recording user responses, calibrating to ambient light conditions, and analyzing test results. This multi-functional approach eliminates the need for specialized equipment and professional operators, improving accessibility while maintaining test quality
3Adaptability or versatility
If real-world visual scenarios are used for testing, then adaptability is improved, but measurement precision worsens
Solution Approach 1:
The system dynamically adjusts test parameters including target luminance, background luminance, and ambient light calibration to match real-world viewing conditions. The processor calibrates the display to ambient light levels and adjusts target visibility parameters to account for varying lighting environments, thereby maintaining measurement precision across diverse real-world scenarios
Data Source
AI summary
A method for performing an eye test includes the steps of: receiving a request from a user to perform the eye test; acquiring predetermined user identification data from the user; presenting or providing at least one test image to the user, the at least one test image including at least one test target contained therein; instructing the user to identify at least one of the at least one test target(s) contained within the at least one test image; acquiring response data associated with the user's attempt(s) to identify the at least one test target(s) contained within the at least one test image; aggregating and/or analysing the acquired user identification data and/or the response data utilising a test algorithm which determines result data; and, presenting or providing the result data to the user.