Red eye--a common problem in childhood.
D002675:Child, Preschool; D003231:Conjunctivitis / Q000209:etiology; D003316:Corneal Diseases / Q000209:etiology; D003607:Dacryocystitis / Q000209:etiology; D005128:Eye Diseases / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery / Q000628:therapy; D005141:Eyelid Diseases / Q000209:etiology; D006801:Humans; D014603:Uveal Diseases / Q000209:etiology