A system for adaptive optics imaging of micro blood vessels in the retinal inner nucleus

Abstract

The invention relates to a high-definition imaging system for rapid capture of retinal microvessels with a diameter below 10 microns and adaptive aberration correction in the optical imaging technology for adaptive correction of eye wave aberration. As shown in the figure: the surface of the visual cell layer is used as the reference position along the optical axis; the distance between the public area of ​​the inner core layer of a large number of human microvessels and the center plane of the public area relative to the reference position is calculated; the human eye is equivalent to a lens, and the current The human eye optical model simulates the relationship between the effective focal length of the human eye and the axial length of the human eye; the measured axial length of the human eye is substituted into the relationship between the effective focal length of the human eye and the axial length of the human eye to calculate the effective focal length of the human eye; Finally, according to the optical parameters of the adaptive optics imaging light path, the image plane position of the central plane of the common area of ​​the inner core layer is calculated, and the imaging camera is set here so that the eyes of the patient under inspection are only irradiated with visible light shorter than 18ms during one inspection, that is, It can complete the clear imaging of micro blood vessels in the inner core layer with a diameter of about 10 μm.

Description

technical field [0001] The invention belongs to the technical field of fundus microscopic imaging, and relates to a method for rapid capture of microvascular layers and high-definition imaging of adaptive aberration correction in the optical imaging technology of adaptive correction of eye wave aberration, in particular to a method without contrast agent A system for adaptive optics imaging of retinal microvessels with a diameter of less than 10 microns. Background technique [0002] The eyeball is a complex optical system with a self-adjusting function and may move subconsciously at any time. The structure of the human eye can be compared to the optical structure of a camera. The lens of a camera is composed of the cornea, lens, anterior and posterior chambers, vitreous body, and ciliary body for focusing. The photodetector of the camera is the retina of the human eye fundus. on the visual cells. The retina is a 10-layer translucent tissue structure, and the visual cells ...

AI Technical Summary

Problems solved by technology

The purpose of this invention is to solve the problem that the focal length and structural parameters of the human eye are different, and it is difficult to capture the microvascular image plane of the inner core layer, so that the patient's eyes are only irradiated with visible light shorter than 18ms in one test, and the adaptive image can be completed. Clear imaging of tiny blood vessels after difference correction

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