P.E.R.F.E.C.T. for PTERYGIUM®
Over the last 25 years Professor Hirst has developed a surgical procedure for the removal of pterygium which is a marked modification of the existing method of autoconjunctival transplant described above.
This method known as P.E.R.F.E.C.T. (Pterygium Extended Removal Followed by Extended Conjunctival Transplant) for PTERYGIUM® has reduced the recurrence rate from the 10 to 15% usually described in the literature, to 1/1000 (0.1%).
More importantly the cosmetic appearance achieved after P.E.R.F.E.C.T. for PTERYGIUM® is usually so good that the patient forgets which eye has had the surgery a few months later. People in casual contact with most patients could not tell which eye has had surgery.
The same technique, P.E.R.F.E.C.T. for PTERYGIUM®, is used for the removal of a pterygium which has already recurred (recurrent pterygium) after removal by other surgeons. The surgical procedure is far more difficult and may take 1½ - 2 hours of operating time. The recurrence rate is 1/200 (0.5%), but the cosmetic result is not always as good as when the surgical procedure is used on a pterygium which has never been removed before.