Capillary blood speed helps in NAION, ON diagnoses

Fort Lauderdale, FL-Differences in local capillary blood speed characteristics in patients who have unilateral nonarteritic anterior ischemic optic neuropathy (NAION) and optic neuritis (ON) may help in the differential diagnosis of these two most common nonglaucomatous optic neuropathies, said Nathalie Collignon, MD, at the annual meeting of the Association for Research in Vision and Ophthalmology.