A CASE OF SUBCLINICAL TOXIC OPTIC NEUROPATHY IN THE ABSENCE OF AN ABNORMAL VEP

Title A CASE OF SUBCLINICAL TOXIC OPTIC NEUROPATHY IN THE ABSENCE OF AN ABNORMAL VEP
Author, Co-Author Chelsie Russ
Topic
Year
2014
Day
Program Number
R52014217
Room
Four Seasons Ballroom
Affiliation
Abstract Toxic optic neuropathy is an often overlooked diagnosis. Early detection is important because some reversal of the disease process can occur if the toxic agent is identified and avoided, and depending on the severity of the insult, some visual function may even return. The diagnosis is often complicated by the fact that affected optic nerve heads can have variable appearances, since the damage can occur at the levels of the optic nerve head, retina, chiasm or visual tract. Painless bilateral gradual vision loss, history of exposure to toxins, central or cecocentral defects on the visual field, reduced color vision, reduced contrast, optic nerve head pallor and an abnormal VEP are all characteristic of this disease process. While not all of these findings are required to make the diagnosis, the following clinical case explores whether the diagnosis of toxic optic neuropathy can be made in the presence of a normal VEP.
Affiliation of Co-Authors
Outline