upper lid eversion, 1265 f visual acuity, assessment of, 1263 –1264 traumatic iritis child abuse, 1272 clinical manifestations, 1271 management, 1271 retinal hemorrhages, in abusive head injury, 1272 f traumatic vs nonorganic visual loss, 1272 Oculoglandular syndrome, 312 Odontalgia (toothaches), 1313 Odontogenic infections, 1313 dentoalveolar infection and abscess, 1313 –1314 Odors, unusual after smoking or inhaling marijuana, 337 from bitter almonds or peach pits, 337 causes common, 339 t life-threatening, 340 t clinical source and cause, 334 t–335 t dermatologic conditions and, 338 differential diagnosis, 333 –339 evaluation and decision, 339 –340 , 339 f foreign body, 338 from garlic, 337 incidence of, 333 from infectious diseases, 337 –338 metabolic disease associated with, 333 –339 , 336 t orifice, 338 pathophysiology, 333 from salicylates, 337 stool, 338 systemic diseases and, 338 –339 from toxins, 337 from vaginal secretions, 338 Oil-based cathartics, 1036 Olanzapine, for schizophrenia, 1442 Olecranon fractures, 1189