Visual field abnormal data evaluation system

Abstract

The invention provides a general visual field abnormal data evaluation system. A plurality of evaluation indexes are given out and includies: the number of visual field blind spots / dim / blurred areas of a patient; the ratio of the area of the blind spot / dim / blurred area of the visual field of the patient to the area of the Amsler table; the maximum / minimum area of the blind spot / dim / blurred area of the visual field of the patient; a score of the blind spot / dim / blurring degree of the visual field of the patient; the ratio of the visual field distortion area of the patient to the Amsler table area; a patient view distortion area cluster number; a score of the distortion degree of each visual field distortion area of the patient; a score of the overall degree of view distortion of the patient; indexes for automatically comparing, analyzing and evaluating the two measurement result graphs with the adjacent time nodes: diffusion or transfer trend vectors of blind spots / dim / fuzzy areas of the view; and diffusion or transfer trend vectors of each cluster of the view.

Description

technical field [0001] The application relates to the fields of data collection and evaluation, and in particular to a visual field abnormality data evaluation system. Background technique [0002] The macular area is located in the center of the retina and is the most sensitive area of ​​human eyesight. There are a large number of cone cells responsible for vision and color vision distributed in this area. Therefore, any lesion involving the macular area will cause a significant decrease in central vision, dark vision, and deformation. With the increase in the average age of our population and the popularization and use of various electronic products, macular degeneration has rapidly become a "blind killer" that seriously affects vision. As of 2020, the number of patients with macular degeneration in the world has reached nearly 200 million, and this number is still showing a rapid upward trend. The symptoms of age-related macular degeneration are very similar to those of ...

AI Technical Summary

Problems solved by technology

This type of software focuses on solving the visual field defect measurement function, but this alone is far from enough for the condition assessment of patients with macular degeneration

[0012] Although some of the above software are called "electronic Amsler tables", they are actually limited to using the Asmler table as a background reference for drawing functions and moving the drawing board from the paper to the screen. However, it is still necessary to manually draw curves throughout the process, which is not fundamental. It does not have great practical application value to solve various cumulative errors caused by problems such as insufficient manual precision, too random shape of the drawn curve, and movement of the line of sight when drawing.

In the blind spot measurement software, the marking patterns used are too single (mostly squares with a fixed size), and it is impossible to adjust the size of the marking patterns immediately and quickly, and the blind spots need to be drawn on the map before each marking for the patient to judge Is the area and size of the blind spot correct? If it is not correct, all the drawn patterns will be erased with one click, which will also erase the correct pattern, which causes great inconvenience and wastes time.

In addition, there is currently no software that integrates the functions of the above two types of software, and there is no software that uses the Amsler table to quantify and evaluate the abnormality of the patient's visual field

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