Differential diagnosis of the "red eye".
D000208:Acute Disease; D003228:Conjunctiva; D003231:Conjunctivitis / Q000175:diagnosis; D003937:Diagnosis, Differential; D005128:Eye Diseases / Q000175:diagnosis*; D005132:Eye Manifestations; D005901:Glaucoma / Q000175:diagnosis; D007500:Iritis / Q000175:diagnosis; D007634:Keratitis / Q000175:diagnosis