The red eye.
D001762:Blepharitis / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D003229:Conjunctival Diseases / Q000175:diagnosis; D003231:Conjunctivitis / Q000175:diagnosis* / Q000209:etiology; D003937:Diagnosis, Differential; D009877:Endophthalmitis / Q000175:diagnosis*; D005141:Eyelid Diseases / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn