A corneal transplant consists of replacing the central full thickness of the diseased cornea with healthy donor tissue. Corneal transplants have been actively performed for more than 50 years. The procedure is usually done in patients with advanced keratoconus or where scarring or disease has resulted in the loss of transparency of the cornea, and hence loss of vision. Also known as a penetrating keratoplasty (PKP), the central portion of the damaged cornea is removed with a special round blade called a trephine, which works similarly to a cookie cutter. A donor cornea that has been extensively tested by an eye bank is then carefully sewn into place with sutures that are thinner than a human hair. The sutures can remain in place for up to a year. The recovery process is slow and may take from 6 months to a year. Use of a contact lens after a corneal transplant may still be needed for the clearest vision. Dr. Edwards is the only cornea fellowship trained specialist in all of southern Utah and is highly skilled and experienced with corneal surgery and medical treatments.