Ophthalmical multifunctional anterior segment imaging device based on slit lamp platform

Abstract

The invention discloses an ophthalmological multifunctional anterior segment imaging device based on a slit lamp platform, which comprises an OCT imaging system, a light source, a sample arm, a reference arm, a spectrograph, and an ocular surface blood imaging system; wherein the light source provides low-coherence light for the OCT imaging system; a part of light generated by the light source enters the sample arm and scans an eyeball, and the eyeball reflects to generate first reflected light with eyeball tissue information; the other part of light generated by the light source enters the reference arm and generates second reflected light, and the second reflected light interferes with the first reflected light; the spectrograph is used for processing the interference light to obtain animage; the ocular surface blood imaging system comprises a slit lamp light source, a first reflecting mirror and an area-array camera; the first reflecting mirror is used for reflecting light generated by the slit lamp light source to the eyeball, and the area-array camera is used for receiving reflected light generated on the surface of the eyeball due to irradiation of the slit lamp light source. According to the imaging device, on the basis that the imaging function of a traditional slit lamp microscope is reserved, tomography of the anterior segment structure of the eye can be achieved, and functional imaging of ocular surface micro blood flow can also be achieved.

Description

technical field [0001] The invention belongs to the field of optical imaging, in particular to an ophthalmic multifunctional anterior segment imaging device based on a slit lamp platform. Background technique [0002] Ophthalmic diseases are diseases that seriously affect and endanger human health and quality of life. Visual impairment seriously affects the eye health and quality of life of the people, involves people's livelihood, and is a major public health and social problem. Clinically, the ocular surface structure is divided into ocular surface tissues included in the upper and lower eyelid margins, mainly conjunctival and corneal tissues. Due to direct contact with the outside world, the ocular surface structure is susceptible to infection and is the most common eye disease. [0003] With the rapid development of ophthalmic imaging technology in recent years, the advent and development of optical coherence tomography (OCT), a non-contact, non-invasive new ophthalmic ...

AI Technical Summary

Problems solved by technology

At present, the functions of slit lamps and anterior segment OCT used in ophthalmic examinations are relatively simple. Generally, they can only perform structural imaging on the anterior segment of the eye such as the cornea in the anterior segment, and cannot obtain dynamic functional information of the microvascular structure of the ocular surface.

OCT blood flow imaging (OCTangiography, OCTA) is a revolutionary new technology developed in recent years. It is generally used for static vascular network imaging of fundus retina and other structures, and cannot obtain dynamic information of blood flow.

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