Head-mounted visual field inspector

A visual field inspection and head-mounted technology, which is applied in the field of medical testing, can solve the problems of discomfort for the examinee and the operator, too many subjective components, etc., and achieve the effect of convenient family follow-up and reducing errors

Active Publication Date: 2016-10-26
吴越
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 m

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] figure 2 , image 3 The names of the marked parts shown in the above are: 1. Closed eye mask; 2. LED display screen; 3. Eye movement monitor; 4. Convex lens with aspherical surface design; 5. Infrared camera device; Perceptual feedback device; 8. Shell; In addition: the control chip is not marked in the attached drawings.

[0032] The present invention is a head-mounted visual field tester worn by the examinee, which includes a housing 8 for installing the following components: a closed eye mask 1, a convex lens 4 with an aspheric surface design, an interpupillary distance adjustment lever 6, An eye movement monitor 3, an infrared camera 5, an LED display 2, a sensory feedback device 7 and a control chip. The closed goggles are connected to the device close to the face, and the convex lens is located in front of the subject's eyes. There is a...

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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...

Claims

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Application Information

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IPC IPC(8): A61B3/024A61B3/113
CPCA61B3/0016A61B3/024A61B3/113
Inventor 吴越葛少玮孙兰萍
Owner 吴越
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