Small-sized dry eye detection device

Abstract

The invention provides a small-sized dry eye detection device. The small-sized dry eye detection device comprises an imaging system and a dry eye detection system; the imaging system comprises a cylindrical Placido annular illuminating system, an annular illuminating light source, an industrial camera, an optical structure with a cross alignment, and a focal length regulating and control system; the cylindrical Placido annular illuminating system, the annular illuminating light source, the industrial camera, the optical structure and the focal length regulating and control system are integrated inside an imaging system shell; the cylindrical Placido annular illuminating system is disposed at a closed structure fit to an eye, and the rear end of the placido annular illuminating system is connected with the front end of the optical structure; the side wall of the closed structure is coated with non-uniform circular rings; the annular illuminating light source is arranged at the rear end of the closed structure; the industrial camera and the optical structure are arranged correspondingly to each other, and the industrial camera is arranged on the focal length regulating and control system; an alignment site of the optical structure is provided with the cross alignment; and the dry eye detection system diagnoses a dry eye symptom according to an image acquired by the imaging system. The small-sized dry eye detection device is simple in structure, free from invasion, simple and convenient in measurement, and capable of being widely applied.

Description

technical field [0001] The invention belongs to the field of medical technology, and in particular relates to a small dry eye detection device. Background technique [0002] Dry eye medicine is called corneal xerosis, which is an inflammatory reaction in which the conjunctiva and cornea cannot be moistened. This disease may be a disease of the ocular surface caused by the lack of water or mucus components in tears or the disorder of ocular surface protection mechanism. It is one of the most common ocular surface diseases in ophthalmology. Surveys in the United States show that 14.6% of the population aged 65 to 84, that is, 4.3 million people, suffer from dry eye, and there is one dry eye patient in five people. 17.0% in Japan and 10.3% in Australia. Although there is no clear epidemiological survey result of dry eye in China so far, based on the health conditions and environmental conditions in China, its incidence may be higher than that in the United States. The patho...

AI Technical Summary

Problems solved by technology

Such foreign equipment is relatively large, expensive, and cumbersome to detect

Due to the fact that dry eye examination equipment is only used in a few top three hospitals in China, the penetration rate is low. At the same time, due to the scarcity of equipment, the inspection process takes a long time and the process is cumbersome, which affects the quality and speed of the inspection.

At present, the use of Placido ring light source as the illumination source is one of the reasons why the dry eye detection equipment is bulky

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