Changes in pterygium.
D000328:Adult; D000368:Aged; D003229:Conjunctival Diseases / Q000473:pathology; D003230:Conjunctival Neoplasms / Q000473:pathology; D003560:Cysts / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011625:Pterygium / Q000150:complications / Q000473:pathology*