Device and method for detecting xerophthalmia based on projection optimized Placido disc

Abstract

The invention relates to a device for detecting xerophthalmia based on projection optimized Placido disc, and the device at least comprises an illumination assembly, an optical imaging assembly which penetrates through the illumination assembly and forms an imaging channel, and a projection imaging assembly which can project light and dark stripe-shaped projection images on corneas after being irradiated by the illumination assembly; the projection imaging assembly is provided with multiple adjusting modes according to the mode that light emitted by the illumination assembly is directly irradiated or shielded and projected to the cornea, the adjusting modes selected according to the projection imaging assembly are different, and stripe projection images can be obtained or the light is directly shielded in a light channel according to the light emitted by the illumination assembly.

Description

technical field [0001] The invention relates to the technical field of medical detection, in particular to a dry eye detection device and method based on a projection-optimized Placido disc. Background technique [0002] According to the data collected from the ophthalmology department of the hospital on the current situation of ophthalmic disease diagnosis and treatment, due to the needs of people's life and work in today's society, people often need to use electronic devices frequently and for a long time, which leads to dry eye in ophthalmic diseases The incidence of the disease has shown a rapid upward trend in recent years. Through the big data collection of the patient population, it is found that dry eye syndrome has become one of the more common ophthalmic diseases at different ages, especially among teenagers and office workers who are keen on using electronic devices. Dry eye is an ophthalmic disease with a high incidence rate. If it cannot be treated in time afte...

AI Technical Summary

Problems solved by technology

This patent aims at making further improvements to the existing Placido disks, which are complex in preparation process, heavy in pollution, and difficult to guarantee processing accuracy. However, the Placido disk and the light source in this patent are set as a fixed connection structure, and no Placido disks can be issued according to the demand. Blocked detection light, especially although the light source is set to be equidistant from the Placido plate, but the number of light sources used is large, the power is high and the cost is also high

[0004] Although the types and preparation methods of dry eye syndrome detection devices equipped with Placido discs have been studied to a certain extent in the existing patents, the current conventional Placido discs are all single curved Placido disc structures, and the Placido discs are generally used The shell of the dry eye syndrome detection device is set in a fixed connection, and the position of the Placido disc in the detection channel of the detection device cannot be adjusted according to the actual detection requirements, especially the detection device can not be able to send out wireless signals according to the requirements. Blocked detection light, and there is no related adjustable movable connection structure design, so when the Placido disk is not required, cumbersome operations are required to adjust or the device can only be used for single projection detection through the Placido disk

However, today's dry eye symptoms are becoming more and more diverse, and a single test cannot effectively guarantee the accuracy of the test results. Therefore, a detection device with multiple detection modes is needed, which can monitor the patient's eyes according to the actual detection requirements. Multiple tests aimed at different eye characteristics to obtain comprehensive dry eye test results can effectively assist medical staff to accurately detect dry eye symptoms with single or special symptoms. Therefore, a method that can be used A variety of detection methods to detect the patient's eye symptoms Dry eye detection device, through the detection of a variety of different eye features to obtain more comprehensive eye information

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