diplopia
Pronunciation: dih-PLOH-pee-ah
Double vision resulting from misalignment of the eyes or neurological dysfunction.
Full Definition
Diplopia, commonly known as double vision, occurs when the visual axes of the two eyes are not properly aligned, resulting in the perception of two images of a single object. In neurological contexts, diplopia often indicates dysfunction of cranial nerves III, IV, or VI, or their associated brain stem nuclei. It can be horizontal, vertical, or oblique, and may be constant or intermittent. Neurogenic diplopia requires careful evaluation to determine the underlying cause, which may range from benign conditions to serious intracranial pathology.
Usage
Usage note: Specify whether monocular or binocular, as this distinction aids in differential diagnosis.
In Context
- "The patient reported sudden onset diplopia with associated ptosis." — Neuro-ophthalmology consultation
- "Diplopia resolved following treatment of the underlying myasthenia gravis." — Follow-up examination note