Complications of Penetrating Keratoplasty
Penetrating keratoplasty (PK) is a procedure in which full-thickness host corneal tissue is replaced with donor corneal tissue. Objectives of PK maybe Optical-to establish a clear visual axis or to minimize refractive error in severely distorted corneas Tectonic-to provide structural integrity Therapeutic-to eliminate infection Occasionally for cosmoses Complications of PK may be divided as intraoperative, early postoperative, and late postoperative. Intra-operative complications: Intra-operative complications may occur at each step of the surgery. These complications can be avoided with meticulous pre-operative planning and careful attention at each step. 1. Anaesthesia: In the case of the retrobulbar or peri-bulbar block (1), globe perforation may occur. A meticulous pre-operative assessment could avoid this complication as eyes with a posterior staphyloma possess a higher risk of perforation. A retrobulbar block may cause scleral perforation, orbital hemorrhage, optic nerve trauma,
Dr. Bhupesh P Jain · Dr. Priyanka Kashelkar