Keratoplasty

Surgical replacement of corneal tissue. Lamellar (layered) keratoplasty can be performed to augment existing thin tissue, but has distinct optical limitations due to the interface between donor and host tissue. Penetrating keratoplasty (also referred to as corneal transplant) can be done to remove abnormal, damaged, diseased or optically distorted central cornea, replacing it with healthy tissue from a donor. Advanced keratoconus is now among the most common reasons for corneal transplant surgery. This treatment is a very effective method of restoring normal anatomy, thickness and optical function to the eye. Penetrating keratoplasty is also (very rarely) warranted to treat complications of LASIK and/or PRK. cornea.