Human eye retina imaging system and method capable of carrying out layered imaging

Abstract

The invention discloses a human eye retina imaging system capable of carrying out layered imaging, comprising an illuminating system and an imaging system, wherein the imaging system comprises a wave-front sensor (316), a wave-front corrector (307), an imaging CCD (Charge Coupled Device) (314) and an oxyopter compensating mirror (303), wherein the wave-front sensor (316) is used for aberration measurement; the wave-front corrector (307) is used for aberration correction; the imaging CCD (314) is arranged on a stepping motor (313) and can move front and back along the direction of an optical axis for focusing; and the imaging CCD (314) can focus on different layers of a retina (301) to realize the layered imaging under the independent working or the joint working of the stepping motor (313), the wave-front corrector (307) and the oxyopter compensating mirror (303). The invention also discloses a human eye retina layered imaging method. The invention has simple structure and can effectively carry out layered observation on retinal layers composing the retina (301).

Description

technical field [0001] The invention relates to a retinal microscopic imaging system, in particular to a system capable of layered imaging of the retina and a method for layered imaging of the retina of the human eye. Background technique [0002] The retinal structure is very complex, divided into inner limiting membrane, nerve fiber layer, ganglion cell layer, inner plexiform layer, inner granular layer, outer plexiform layer, outer granular layer, outer limiting membrane, cones, rod cell layer, Multiple layers of tissue such as the pigment epithelium, if each layer can be imaged separately, will provide a powerful tool for accurate diagnosis of fundus conditions. [0003] In the existing retinal microscopic imaging system, a method for layered scanning and imaging of the retina is proposed in the Chinese invention patent application 200710021776.1. The above invention can perform layered scanning and imaging of the retina well, but in actual use The two objective lenses ...

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Problems solved by technology

[0003] In the existing retinal microscopic imaging system, a method for layered scanning and imaging of the retina is proposed in the Chinese invention patent application 200710021776.1. The above invention can perform layered scanning and imaging of the retina well, but it is used for The two objective lenses of the layered scanning are located in the illumination system and the imaging system at the same time, and the two objective lenses are not a single piece, but are composed of multiple lenses. The two objective lenses should be coated with high-transmittance anti-reflection coatings, otherwise Imaging systems can generate large amounts of stray light

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