What are the ocular findings characteristic of methanol toxicity?

Updated: Nov 05, 2018
  • Author: Kalyani Korabathina, MD; Chief Editor: Tarakad S Ramachandran, MBBS, MBA, MPH, FAAN, FACP, FAHA, FRCP, FRCPC, FRS, LRCP, MRCP, MRCS  more...
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Answer

In addition to the progression of symptoms from drowsiness to stupor to coma, ocular findings in patients with methanol poisoning are prominent during a careful neurologic examination.

Visual symptoms necessitate a thorough examination of the fundi. Optic disc hyperemia occurs early in the course of methanol intoxication. Pupillary response to light is compromised and, subsequently, is lost. Little or no retinal damage is observed.


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