Dual-liquid varifocal lens human eye system by using electric control for focusing and focusing method

Abstract

The invention discloses a dual-liquid varifocal lens human eye system by using electric control for focusing and a focusing method. A Gullstrand-Le Grand human eye model is taken as the basis, an artificial lens based on a dual-liquid varifocal lens is arranged between the front chamber and the vitreous body, the artificial lens based on the dual-liquid varifocal lens is formed by a first glass lens, a second glass lens and a metal cylindrical container, insulating liquid and conducting liquid are contained in the metal cylindrical container, the inner wall of a metal cylindrical tube is coated by a layer of insulating media, the conducting liquid and external voltages applied to the insulating liquid by the outer wall of the metal cylindrical tube are used for adjusting, controlling and changing the curvature radius of the liquid interface to change the focal length of the dual-liquid varifocal lens, and thus an individualized adjusting range of the human eyes is obtained. The dual-liquid varifocal lens human eye system by using the electric control for the focusing and the focusing method have the advantages of being simple in structure, convenient to implement, wide in adjustable range and the like, and assistance is provided for designing an optimal optical structure of the human eyes and improve the dioptric system of the human eyes.

Description

technical field [0001] The invention relates to an optical model of the human eye, in particular to a double-liquid zoom lens human eye system and a focusing method using electronically controlled focusing, which are used in the technical fields of optometry and ophthalmology. Background technique [0002] Eyes are one of the most important sensory organs of the human body and the main tool for human beings to obtain external information. The human eye is a complex optical system with multiple interfaces. Its main components are from the outside to the inside: cornea, aqueous humor, lens and vitreous body. Every interface from the cornea to the front of the retina of the fundus is a component of the compound optical system. However, some people are blind due to congenital or illness, injury and other reasons, which brings inconvenience and pain to life. Therefore, the study of human eye models is of great significance in the fields of optical imaging and biomedicine. [00...

AI Technical Summary

Problems solved by technology

[0006] The invention discloses a double-liquid zoom lens human eye system and a focusing method using electronically controlled zooming, aiming at overcoming the problem of the existing single-focus intraocular lens: the patient loses adjustment power after surgery and needs to rely on glasses to meet short-distance work ;Multifocal intraocular lens has image quality degradation; adjustable intraocular lens has disadvantages such as limited adjustment range

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