The recurrent pterygium and repeated surgical operations destroy the normal Bowman's membrane which acts as a barrier to the ingrowth of conjunctival tissues. The insertion of a lamellar corneoscleral graft in the area of involvement seems to be a logical approach. Measurements are made on both the recipient and donor eye using the limbus as a point of reference. The dissections are made by hand. The 10-0 monofilament suture can be left indefinitely with little discomfort. The interrupted sutures are absorbed after the sclera has become adequately fixed by fibrous tissue.
Reeh MJ. Corneoscleral Lamellar Transplant for Recurrent Pterygium. Arch Ophthalmol. 1971;86(3):296-297. doi:10.1001/archopht.1971.01000010298011