CPT® Code 65785

Intrastromal corneal ring segments are specialized medical devices designed to enhance visual acuity by altering the shape of the cornea. These segments are micro-thin, flexible, crescent-shaped inserts made from polymethylmethacrylate, a biocompatible material. They come in various thicknesses to accommodate different levels of visual correction. The implantation procedure involves creating a small incision in the cornea, followed by the formation of channels using either a laser or a specialized dissecting instrument. Once the channels are prepared, one or two corneal ring segments are inserted into each channel, with the thickness selected based on the specific degree of correction required for the patient. The primary function of these implants is to flatten the curvature of the anterior cornea, which in turn modifies the cornea's shape and affects the eye's refraction, leading to improved vision. This procedure is particularly beneficial for individuals suffering from myopia and astigmatism, especially those who have previously undergone refractive laser surgery and are experiencing complications such as corneal ectasia or keratoconus.