Adaptive optics eyes micro-vision defect evaluation system

Abstract

The invention relates to a self-adapting optical human micro-visual field defect evaluation system. The light emitted by a beacon penetrates a collimating mirror, a first reflecting mirror and a firstbeam-splitting mirror and then enters the pupilla of human eyes. The reflected light from the ocular fundus penetrates the first beam-splitter mirror and a first beam-matching telescope, is reflectedby a wavefront corrector, penetrates a second beam-matching telescope, a second reflecting mirror and a second beam-splitting mirror and enters a Hartman wavefront sensor. A computer calculates and controls the voltage according to the detected aberration and drives the wavefront corrector to correct the human eye aberration after the high-voltage amplification. After the aberrational correctionis completed, the computer software generates a stimulating visual sign and the stimulating visual sign is displayed on a stimulating visual sign display device. A subject observes the stimulating visual sign via the system and makes the determination. The determination of the subject is recorded for the evaluation of the human visual field defect. Based on the self-adapting optical techniques, the self-adapting optical human micro-visual field defect evaluation system greatly reduces the visual field examination stimulus redundancy caused by the human eye aberration, realizes the early diagnosis of early-stage tiny visual field defect caused by diseases, and provides a powerful tool for the human micro-visual field evaluation and the early diagnosis of the related diseases.

Description

technical field [0001] The invention relates to an adaptive optical human eye micro visual field defect evaluation system, which is an optical instrument used for finely evaluating early micro visual field defect of the human eye. Background technique [0002] Vision (Visual Field) has a major impact on people's working life just like vision. The World Health Organization stipulates that those with visual field less than 100, even if the central vision is normal, also belong to blindness. Visual field examination provides important information for ophthalmologists to diagnose and follow up the major blinding eye diseases. Undoubtedly, visual field examination is the basic method for diagnosing and monitoring glaucoma and some other visual and optic nerve diseases. Advanced visual field examination provides the possibility for early diagnosis and condition monitoring of related diseases, and at the same time creates conditions for successful treatment. However, early subtle...

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Problems solved by technology

[0008] Second, the position of the stimulus visual target used by Makous et al. is fixed, which is essentially a static visual field inspection method, which can only inspect a limited area;

[0009] Third, when Makous et al. measured the visual frequency curve of the test subject, in order to eliminate the influence of the aberration detection beacon light on the test, their adaptive optics system was in a latched state, so they could not monitor the human visual frequency curve during the test. Fluctuation of eye aberrations

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