Heterophoria detection system and method

Abstract

The invention provides a heterophoria detection system and method. An eyepiece is adopted for forming a virtual image in a finite distance and serves as a sight target, by reasonably designing an optical system structure, by means of combination of the eyepiece and a camera, eye position changes can be observed from the angle of emmetropia, pictures containing eye position information of the eyesare collected, the measurement errors are reduced, distribution of measurement errors in eye position measurement is reasonably configured, and the measurement result is more reasonable and reliable;in addition, a detected person does not need to participate in adjustment, the detection result is more credible, and the detection process is simple and rapid.

Description

technical field [0001] The invention relates to the field of image vision technology, in particular to a phoria detection system and method. Background technique [0002] The two eyes only have a tendency to deviate and can be controlled by the fusion function, so that the strabismus is not obvious and the binocular single vision is maintained. This potential deviation of the eye position is called phoria. Phyphoria is an underlying deviation in eye position, but binocular single vision can be maintained under the control of the fusion reflex to force the eyeballs to remain in the normal position without showing deviation. Misalignment manifests itself when brain fusion is blocked (eg, when one eye is covered) or out of control (eg, during vision overuse or mental fatigue). Therefore, the difference between phoria and strabismus is only in degree rather than in quality. [0003] Existing phoria detection methods: cover-uncover test (objective, qualitative test), prism plus...

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This often increases the difficulty of the detection operation, and does not take advantage of the work

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