Fresnel lens

A Fresnel lens is a thin, flexible ophthalmic device designed to be attached to the rear surface of standard eyeglasses. These lenses use a series of concentric refractive zones to focus light, helping clinicians manage vision issues such as nearsightedness, farsightedness, presbyopia, and the absence of a natural eye lens.

These optical components are typically manufactured from plastic or glass materials. Users should note that these devices are intended for integration with existing corrective eyewear to modify light refraction for specific therapeutic needs.