Setting system for objectively quantizing binocular inhibition degree of groups

Abstract

The invention relates to the technical field of visual cognition, in particular to a setting system and method for objectively quantizing binocular inhibition degree of groups. A screen of a tested machine in the setting system displays visual stimulation, black and white sine wave bar screens which move oppositely and have different contrast proportions induce tested optokinetic nystagmus (OKN),the OKN is shown in two eyes separately by a sight glass to induce binocular competition, an eye tracker objectively records eyeball movement conditions under different contrast proportion conditionsand displays the eyeball movement conditions on a host tester screen in real time, and a binocular competition balance point is calculated by analyzing eye movement recorded data. The setting system can objectively and quantitatively evaluate the binocular inhibition degree of groups, solves the problem that the prior art cannot be applied to tests with poor adaptability or make subjective judgments, improves the evaluation accuracy of inhibition degree and relieves complete dependence of existing methods on group compliance.

Description

technical field [0001] The invention relates to the technical field of visual cognition, and relates to a method for quantifying the degree of inhibition between the eyes of a person used in ophthalmology, in particular to a setting system and method for objectively quantifying the degree of inhibition between the eyes of a crowd, and then evaluating the degree of balance of the eyes. Background technique [0002] For certain ophthalmic diseases such as optokinetic nystagmus (OKN), it is necessary to measure the degree of inhibition between the eyes of the patient. In clinical ophthalmology practice, the method of quantifying the degree of inhibition between the eyes is commonly used to evaluate the balance of the eyes. Studies have shown that when a person's eyes receive different visual stimuli, competition occurs between the eyes, and the contrast sensitivity of the suppressed eye decreases overall. The theory of binocular rivalry proposes that rivalry between the eyes is...

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Problems solved by technology

[0004] The definition of optokinetic nystagmus (OKN) can be divided into following movement (slow phase) and saccade movement (fast phase). Studies have shown that OKN can be evoked by visual stimuli and can be objectively recorded and measured Yes, there are corresponding binocular split vision experiments in some studies, which have verified that grid visual stimuli moving in opposite directions can induce OKN in which binocular competition and opposite directions appear alternately, and other studies have also shown that OKN following the direction of movement can be directly used Objective evidence of the dominant direction of movement seen by the subject during binocular rivalry; however, none of the above methods are effective in determining the degree of interocular suppression

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