Using a piece of donated corneal tissue to repair the eye of someone who has had a cataract removed WordNet 3.0 & Open English WordNet

Epikeratophakia is a refractive surgical procedure in which a lamella of a donor cornea is transplanted onto the anterior surface of the patient's cornea. Wikipedia

The surgical correction of aphakia. It is a refractive surgical procedure in which a donor cornea is transplanted to the anterior surface of the patient's cornea. A lamellar disc from a donor cornea is placed over the de-epithelialized host cornea and sutured into a prepared groove on the host cornea. Wiktionary