Fundus Refractive Pattern Generation for Full-Field Eye Mapping
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Solution Overview
Problem
Existing methods for obtaining refractive information of the fundus with a large field of view using an ophthalmoscope are time-consuming and labor-intensive, and only provide refractive distribution in horizontal and vertical directions, failing to meet detection requirements.
Innovation Solution
A method involving capturing fundus images, calculating resolutions, confirming target resolutions, and generating a refractive matrix to determine refractive information, allowing for efficient and accurate measurement of the entire fundus area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an ophthalmoscope is used to obtain refractive information of fundus with large field of view by artificially refracting different viewing angles, then refractive distribution in horizontal and vertical directions can be obtained, but the process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent replaces the mechanical manual refraction method with an optical imaging system that uses a camera to capture fundus images. The refractive information is obtained through image processing and calculation algorithms rather than manual manipulation, significantly reducing measurement time while maintaining accuracy.
Solution Approach 2:
The patent creates a digital copy of the fundus refractive information through image capture and processing. Instead of manually measuring each point, the system captures the entire fundus area in an image and extracts refractive data through computational methods, enabling rapid acquisition of comprehensive refractive maps.
2Measurement precision
If an ophthalmoscope is used to measure refractive information, then refractive distribution can be obtained, but only in horizontal and vertical directions which cannot meet detection requirements
Solution Approach 1:
The patent transitions from one-dimensional manual refraction measurements to two-dimensional comprehensive fundus imaging. By capturing the entire fundus area in an image and processing it to generate a refractive map across multiple directions and regions, the system provides全方位 (comprehensive) refractive distribution information that meets modern detection requirements.
3Ease of operation
If general refractometer is used, then measurement process is simple, but only the diopter of the macular area can be measured
Solution Approach 1:
The patent creates a multi-functional system that combines the simplicity of automated imaging with the capability to measure the entire fundus area. The same imaging system can capture both macular and peripheral regions, providing comprehensive coverage while maintaining ease of operation through automated image capture and processing.
Data Source
AI summary
Disclosed are a method and a device for generating a refractive pattern, and a computer-readable storage medium. The method includes: capturing fundus images of a human eye to be measured, and obtaining refractive information corresponding to the fundus images; calculating resolutions of the fundus images, and generating a resolution sequence of the fundus images according to the resolutions; confirming target resolutions in the resolution sequence, and obtaining the refractive information of fundus images corresponding to the target resolutions; and generating a refractive matrix according to the refractive information, and generating the refractive pattern according to the refractive matrix.