Corneal Inlays and Corneal Onlays

What are Corneal Inlays and Corneal Onlays?

Corneal inlays and onlays are made of biocompatible materials that are similar to the clear surface of the eye. In LASIK and PRK, laser energy reshapes the outermost part of the eye (cornea) to alter the way light rays enter the eye. With corneal inlays or onlays inserted just below the eye's surface, laser energy some day could be used to shape this artificial material instead of the eye itself.

Corneal inlays or onlays work much like contact lenses to correct vision. However, the difference is that these devices never require regular removal or ongoing care. They are designed to seamlessly blend in with the eye's surface.