It is a surgical procedure where a diseased cornea is replaced with an artificial cornea called as keratoprothesis. It has only been reserved for eyes that have already failed corneal transplantation or where the prognosis for a corneal transplant is extremely poor. Treatment of patients whose vision is less than 20/200 in the affected eye, patients with failed corneal transplant using donor cornea and have little or no vision left, patients with congenital birth defects, non-autoimmune diseases, patients who do not have access to corneal transplant tissue and other ocular problems.
