Visual outcome after penetrating keratoplasty

ABSTRACT

Background: penetrating keratoplasty [PKP] is a surgical procedure in which surgical replacement of the host cornea with a donor cornea is performed. The term "allograft " is used if the donor is another person, and "autograft" if the tissue is taken from same subject. The important optical indications include keratoconus, corneal dystrophies, corneal degenerations, pseudophakic bullous keratopathy, corneal scarring and corneal opacities resulting from infective and non-infective causes