Light Field Vision Testing Device Dynamic Pixel Rendering
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Solution Overview
Problem
Current vision testing methods, such as traditional phoropters, are limited in their ability to dynamically adjust image perception for users with varying visual acuity and cognitive impairment, and lack the capability for remote administration, which can lead to inefficiencies and inaccuracies in diagnosing refractive errors and cognitive conditions.
Innovation Solution
A light field vision-based testing device with a dynamic pixel rendering method and online testing system that uses a light field display to adjust user perception of optotypes, allowing for remote administration through a network communication interface, enabling dynamic adjustment of visual acuity compensation and cognitive impairment assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional phoropter is used for vision testing, then the device structure is simple and easy to operate, but it cannot dynamically adjust image perception for users with varying visual acuity and lacks remote administration capability
Solution Approach 1:
The patent replaces the mechanical optical adjustment system of traditional phoropters with a digital light field display system. The light field display uses computational algorithms to dynamically adjust the perceived image distance and focus for each pixel, eliminating the need for physical lens changes and mechanical adjustments while enabling remote administration through digital interfaces.
Solution Approach 2:
The light field display system dynamically adjusts the rendering of each pixel based on real-time user feedback and visual acuity measurements. The system can change the perceived distance, size, and focus of optotypes on-the-fly without physical movement, allowing adaptive testing that responds to user performance during the examination.
2Ease of operation
If traditional vision testing is conducted in-person, then the testing accuracy is maintained, but the accessibility and patient comfort are reduced
Solution Approach 1:
The light field display acts as an intermediary between the examiner and the patient, enabling remote vision testing through digital communication interfaces. The system maintains measurement precision by using standardized optotype rendering and automated feedback mechanisms while improving accessibility by allowing patients to be tested in their own environments without requiring physical presence in a clinical setting.
3Adaptability or versatility
If light field display is used to dynamically adjust pixel rendering, then the adaptability for different visual acuity levels is improved, but the computational complexity and processing requirements increase
Solution Approach 1:
The light field display system divides the image into individual pixels or pixel groups, each of which can be independently adjusted for rendering. This segmentation allows the computational load to be distributed and optimized, with each pixel's light field parameters calculated based on the user's specific visual acuity profile, enabling precise adaptation without requiring complete recalculation of the entire image.
4Productivity
If remote vision testing is implemented, then the accessibility and efficiency are improved, but the ability to observe and detect cognitive impairment may be reduced
Solution Approach 1:
The system incorporates automated feedback mechanisms that track user responses, response times, and pattern recognition accuracy during vision testing. This feedback data is analyzed to detect cognitive impairments such as those associated with concussion, allowing remote testing to maintain diagnostic capability while improving efficiency through automated analysis of behavioral patterns during the examination.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a more accurate and efficient means of determining visual acuity and detecting cognitive impairment by dynamically adjusting image perception and allowing remote testing, enhancing patient comfort and accessibility of vision correction prescriptions.
Implementation Method 1
a light field display operable to render digital content, wherein said digital content comprises at least one testing optotype
Data Source
AI summary
Described are various embodiments of a light field testing device, adjusted pixel rendering method and computer-readable medium therefor, and testing system and method using same. In one embodiment, a light field device, system or computer-implemented method is provided to dynamically adjust user perception, via a light field display, of at least one testing optotype in accordance with a vision-based test, while also providing test administrative guidance via the light field display.