Color and NIR Vision Screening for Composite Eye Diagnosis
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Solution Overview
Problem
Existing vision screening devices are limited in their ability to perform a comprehensive range of tests for eye diseases and abnormalities, often requiring multiple devices and methods, and there is a need for a single integrated device capable of utilizing both infrared and visible light imaging to enhance diagnostic capabilities.
Innovation Solution
A vision screening device that incorporates a radiation source for near-infrared emission, a sensor for capturing reflected radiation, a white light source, and a camera for color imaging, along with a processor to generate composite images and analyze differences between captured images to determine eye conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single integrated device is used for vision screening, then the versatility and comprehensive diagnostic capability are improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple imaging modalities (infrared imaging and visible light/color imaging) into a single integrated vision screening device. The device includes both an infrared radiation source with sensor and a white light source with camera, allowing comprehensive eye examination capabilities in one unified system rather than requiring separate devices for different types of tests.
Solution Approach 2:
The integrated vision screening device is designed to perform multiple vision screening functions including infrared imaging for detecting eye conditions, color imaging for visual acuity and color vision tests, and composite image generation for comprehensive analysis. This multi-functional design allows a single device to replace multiple specialized devices.
2Loss of information
If both near-infrared and visible light imaging are integrated, then the diagnostic information completeness is improved, but the device complexity increases
Solution Approach 1:
The patent merges infrared imaging capabilities and visible light/color imaging capabilities into a single integrated device. The system includes both an infrared radiation source with sensor array and a white light source with color camera, enabling simultaneous acquisition of both infrared and visible light images for comprehensive diagnostic information.
Solution Approach 2:
The patent adds the infrared wavelength dimension to the traditional visible light imaging. By incorporating infrared radiation sources and sensors alongside visible light components, the system captures diagnostic information from an additional spectral dimension, providing more comprehensive eye condition assessment.
3Measurement precision
If composite images are generated and analyzed automatically, then the diagnostic accuracy is improved, but the processing complexity increases
Solution Approach 1:
The patent implements automated image processing and analysis that generates composite images by combining infrared and visible light images, then automatically analyzes these composite images to detect eye conditions. The system compares analyzed features against reference values and provides feedback-based diagnostic recommendations, improving accuracy through systematic automated analysis.
Solution Approach 2:
The integrated vision screening device performs automated image processing, composite image generation, and analysis without requiring manual intervention. The system automatically processes captured images, generates composite representations, detects abnormalities, and provides diagnostic outputs, enabling self-service operation that reduces reliance on manual analysis.
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
Enables comprehensive screening for a wide range of eye diseases and abnormalities, including cataracts, tumors, and retinal issues, without the need for pupil dilation, by integrating near-infrared and visible light imaging, and providing automated diagnosis and visualization tools.
Implementation Method 1
a radiation source configured to emit radiation of a first wavelength (e.g., in a near-infrared band)
Implementation Method 2
a sensor configured to capture radiation reflected by an eye of a patient
Implementation Method 3
a white light source, and a camera configured to capture a color image of the eye of the patient
Implementation Method 4
cause the camera to capture a color image of the eye of the patient during the second period of time
Data Source
AI summary
A vision screening device for administering vision screening tests to a patient, to determine the presence of diseases and/or abnormalities in the eye(s) of the patient, is described herein. The vision screening device may include associated methods and systems configured to perform the operations of the vision screening tests. The device may include a radiation source configured to generate near-infrared (NIR) radiation, a sensor configured to capture a grayscale image representing the radiation reflected by the eye(s) of the patient, a white light source, and a camera configured to capture a color image of the eye of the patient. The device may also be configured to generate a composite image based on the grayscale image and/or the color image, determine a difference between a value associated with the eye and an expected value, and generate an output indicative of a condition associated with the eye(s) based on the difference.