pinguecula is also considered as precursor of pterygium. it is elastotic degeneration of collagen fibre coupled with hyaline deposition . pterygium should be differentially diagnosed from pseudopterygium. to prevent the recurrence of pterygium , now adays we prefer surgical excision with free conjuctival autograft [CLAU]. second surgical excision with amniotic membrane graft and mitomycin- C[MMC]