Disorders of the external eye.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002675:Child, Preschool; D003229:Conjunctival Diseases / Q000175:diagnosis; D005128:Eye Diseases / Q000175:diagnosis*; D005141:Eyelid Diseases / Q000175:diagnosis; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged