White ring of the cornea.
D002118:Calcium / Q000032:analysis; D003315:Cornea / Q000032:analysis / Q000473:pathology; D003318:Corneal Opacity / Q000473:pathology*; D006651:Histocytochemistry; D006801:Humans; D007501:Iron / Q000032:analysis*; D008055:Lipids / Q000032:analysis; D008297:Male; D008875:Middle Aged; D011827:Radiation
D008055:Lipids; D007501:Iron; D002118:Calcium