Integrated Vision Screening Device With Single-Camera Eye Analysis
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Solution Overview
Problem
Conventional vision screening devices are cumbersome, lack accuracy and consistency, and often require multiple devices for different tests, leading to unreliable results and inadequate tracking of vision health over time.
Innovation Solution
A vision screening system that performs multiple dynamic tests, records eye behavior measurements, and provides automated diagnosis recommendations using graphical representations, machine learning, and video data analysis to enhance accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional vision screening devices are used to perform vision tests, then basic screening functionality is provided, but the devices are cumbersome, lack accuracy and consistency, and require multiple separate devices for different tests
Solution Approach 1:
The patent combines multiple vision screening test capabilities (refractive error testing, visual acuity testing, convergence testing, accommodation testing) into a single integrated device. The system uses a single camera to capture ocular images and a single display to present various test stimuli, eliminating the need for multiple separate devices while providing comprehensive vision screening functionality.
Solution Approach 2:
The vision screening device is designed as a universal system that can perform multiple types of vision tests through software configuration rather than requiring separate hardware for each test type. The display can present different test patterns (Snellen charts, random dot stereograms, moving targets) and the camera can capture various ocular parameters, making the device adaptable to different screening requirements.
2Measurement precision
If conventional vision screening devices are used, then screening tests can be performed, but the results lack accuracy and consistency
Solution Approach 1:
The system incorporates automated image analysis that processes captured ocular images to determine vision screening results. The processor analyzes the captured images using algorithms that objectively measure ocular parameters, providing consistent and accurate results. This automated feedback mechanism eliminates subjective interpretation and improves measurement precision compared to manual assessment methods.
Solution Approach 2:
The patent replaces manual vision testing methods with automated optical and computational systems. Instead of relying on manual observation and interpretation by examiners, the system uses a camera to capture ocular images and a processor to automatically analyze them, substituting mechanical and human judgment with automated optical measurement and computational analysis for more precise and consistent results.
3Adaptability or versatility
If multiple separate devices are used for different vision tests, then comprehensive screening is possible, but the overall system becomes cumbersome and difficult to operate
Solution Approach 1:
The patent merges multiple vision testing functionalities into a single integrated device with a unified interface. The system presents multiple test types through a single display and captures all ocular parameters using a single camera, allowing comprehensive vision screening to be performed by operating one device rather than coordinating multiple separate devices, significantly improving ease of operation.
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AI summary
A vision screening system for testing the vision of a patient is described herein. The vision screening system may include a vision screening device configured to perform a number of vision screening tests. For example, the system may be configured to determine or generate a graphical representation for display to the patient, via the vision screening device, to evaluate the health of the patient's vision and/or detect abnormal vision behavior. The system may be configured to evaluate image/video data recorded by the vision screening device to determine measurements associated with the patient during the vision screening. The system may be configured to analyze the measurements to generate a diagnosis recommendation associated with the vision of the patient. The system may also be configured to display the recommendation and/or the measurements, along with additional screening data, to a tester conducting the vision test.