Inhibition quantitative detector and inhibition quantitative detection method using inhibition quantitative detector

Abstract

The invention relates to an inhibition quantitative detector and an inhibition quantitative detection method using the inhibition quantitative detector. A binocular dichoptic effect is achieved by adopting a polarizer, so that the influence of a color lens on an examination result is reduced; a sighting mark with content rather than a spot light source is adopted as a viewing target, so that whether two eyes are balanced can be easier and more objectively judged by a detected person; and the same visual effect of the two eyes is achieved by changing light transmittance of an ND filter, so that a visual inhibition degree can be conveniently and rapidly quantitatively detected.

Description

technical field [0001] The invention specifically relates to the field of detection of depth of suppression of amblyopia, in particular to a quantitative suppression detector and a quantitative suppression detection method using the quantitative suppression detector. Background technique [0002] Suppression is the key factor leading to the occurrence of amblyopia. The strength of suppression between the eyes is believed to be significantly related to the occurrence and severity of amblyopia. Therefore, if the corresponding amblyopia treatment can be taken based on the degree of suppression, it will have a positive effect on the treatment effect of amblyopia . But at present, it is impossible to quantitatively detect the suppression depth of amblyopic eyes clinically, and it is difficult to take individualized treatment according to the degree of suppression. [0003] Currently available methods: 1. Worth 4-point light detection. During the test, the patient wears red-green...

AI Technical Summary

Problems solved by technology

However, at present, it is impossible to quantitatively detect the suppression depth of amblyopic eyes in clinical practice, and it is difficult to take individualized treatment according to the degree of suppression

[0003] Currently available methods: 1. Worth 4-point light detection. During the test, the patient wears red-green glasses, and uses the principle of red-green complementarity to observe the Worth 4-point visual mark under split vision conditions. This inspection method has some shortcomings: Red and green glasses themselves have an inhibitory effect on the eyes and interfere with normal visual effects to a certain extent; Some patients may have color vision impairment, which may be affected by color interference; Unable to quantitatively and finely measure the depth of inhibition

2. Measuring the consistent threshold of eye-off movement: it is a method that can quantitatively measure the depth of inhibition that has been studied more, but the test requires high cooperation and the test is aimed at adults. It is suitable for laboratory application and difficult to apply in clinical practice.

3. Gray density mirror + linear mirror in ND filter: the linear mirror has flat glasses with fine parallel stripes, and the lens stripes of the two glasses are 45° and 135° respectively to achieve the effect of separating the two eyes, so that the objects seen by the two eyes It is basically the same as the background. By placing an ND filter in front of the patient's dominant eye, the depth of suppression can be measured by reducing the filtering of light in the dominant eye to achieve a balance between the eyes. False positive results, at the same time, it is difficult for patients to evaluate whether the eyes are balanced by judging the brightness of point light sources, and the test results are easily affected by subjective factors of patients

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