Head-mounted visual field inspector

Abstract

A head-mounted visual field inspector is characterized by comprising a housing, a control chip, a closed patch and two aspherical convex lenses, wherein an interpupillary distance adjusting shifting rod is arranged on the lower part of the housing and used for adjusting the distance between the two aspherical convex lenses to adapt to the interpupillary distance of a subject; an eye movement monitor and an infrared shooting device which are connected to the control chip are arranged beside each aspherical convex lens and used for monitoring the eye movement; an LED screen is arranged in front of the two aspherical convex lenses and used for providing background light, fixation points and required stimulation points of different directions and different degrees of luminance in the inspection process for inspecting the visual field of the subject; and a perception feedback device is connected with the control chip by a wire and used for feeding back the perception result of the subject for bright spots on the LED screen. The head-mounted visual field inspector can rapidly detect the visual field of the subject, and is capable of reducing the visual field detection result errors caused by the eye movement, so that the screening of visual field for massive population or home follow-up for patients with visual field injury becomes very convenient.

Description

technical field [0001] The invention relates to the technical field of medical detection, in particular to an inspection device for ophthalmology and neurology. Background technique [0002] The visual field refers to the entire spatial area that the eyes can observe when looking at a target. Visual field examination is a commonly used detection method in ophthalmology and neurology. It is used to detect visual field defects caused by diseases, and has great value in diagnosis and evaluation of treatment effects. It is currently known that many diseases such as glaucoma, retinal diseases, central nervous system tumors, central nervous system ischemia, etc. can cause loss or change of human visual field. [0003] At present, the most commonly used method of visual field inspection in clinical medicine is computer visual field inspection. Its theoretical basis is the threshold value determination method, that is, to determine the size of the field of view and the defect acco...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a head-mounted visual field tester, which solves the problem of too many subjective components in the current visual field test and the discomfort of the examinee and the operator during the test.

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