Sclera mirror

Abstract

The invention discloses a sclera mirror. The mirror comprises a mirror body, wherein an optical area, a transition area and a positioning area are continuously formed on the lens body from the centerto the outside, the joint of a cornea and the sclera is sequentially divided into a cornea part, a transition part and a sclera part in the direction from the cornea to the sclera, the positioning area is attached to the sclera and used for positioning the sclera mirror, the transition area stretches across upper parts of the cornea and the sclera, an optical area is arranged at a front end of thecornea and provides vision correction for eyes, the transition area is arranged to be of any one of a one-section arc structure or a two-section arc structure or a three-section arc structure according to different shapes of the cornea part, the transition part and the sclera part, distinguishing design can be conducted according to different shapes of the cornea part, the transition part and thesclera part, and the wearing comfort is improved.

Description

technical field [0001] The invention relates to the field of contact lenses, in particular to a scleral lens. Background technique [0002] Like many lenses, scleral lenses are used to correct vision problems, but unlike other contact lenses, scleral lenses can also be used to protect the cornea and have certain therapeutic effects. [0003] The scleral lens is in direct contact with the insensitive cornea, and its edge falls on the less sensitive white of the eye, also known as the sclera; there is no direct contact between the scleral lens and the cornea, and a residual A layer of fluid that protects the cornea and is used to help the cornea heal and repair. [0004] The connecting area of ​​cornea and sclera is divided into corneal part, transitional part and sclera part along the direction of cornea to sclera. [0005] The vision correction effect provided by scleral lenses is similar to that of other types of hard contact lenses, but they are more comfortable. Scleral...

AI Technical Summary

Problems solved by technology

[0005] The vision correction effect provided by scleral lenses is similar to that of other types of hard contact lenses, but they are more comfortable. Scleral lenses can be worn in dusty, windy, dry and other harsh environments

[0006] The scleral lens in the prior art lacks detailed design for the transition zone, cannot be designed adaptively according to different eyeball shapes, and has poor wearing comfort

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