摘要
Pterygia are an extremely common ocular condition believed to be occurring due to proliferation and overgrowth of abnormal epithelial and fibrovascular tissue onto the cornea.They are characterized by cellular proliferation,neovascularization and inflammation.Indications for treatment vary from minor cosmetic concerns to significant visual loss.Management options include an array of surgical techniques including simple resection(leaving the sclera bare),or resection followed by covering the sclera with primary conjunctival closure,a conjunctival or conjunctivolimbal autograft(CAG and CLAG respectively)from another site on the bulbar conjunctiva of the same eye,or with human amniotic membrane(HAM).
