title: Diabetic oculomotor paresis with pupil fixed to light.
abstract: The pupillary near response should always be evaluated when the light response is defective. We present a case of diabetic third-nerve paresis with concomitant light-near dissociation. Without careful evaluation of the near response, angiography would have been indicated to rule out a posterior communicating artery aneurysm. Pharmacologic and slit lamp testing can be used to verify light-near dissociation.
mesh_terms: D000328:Adult; D003929:Diabetic Neuropathies / Q000503:physiopathology*; D005403:Fixation, Ocular; D006801:Humans; D008027:Light; D008297:Male; D009886:Ophthalmoplegia / Q000503:physiopathology*; D011680:Pupil / Q000502:physiology*