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Migraine-related visual-field loss with prolonged recovery
1College of Optometry, State University of New York, York 10010, USA.
Journal of the American Optometric Association
|June 1, 1997
Summary
Migraine visual disturbances can cause persistent vision loss. This study shows that visual recovery is possible even when visual field defects last over 10 days, suggesting a form of complicated migraine.
Area of Science:
- Neurology
- Ophthalmology
Background:
- Migraine is a neurological disorder often associated with visual disturbances.
- These visual disturbances are typically transient but can lead to persistent or permanent visual field defects.
- It is crucial to rule out other causes of vision loss when persistent visual field defects occur, even with a suspected migraine history.
Observation:
- Two patients with visual loss (one symptomatic, one asymptomatic) and a history of migraine were evaluated.
- Both patients experienced persistent visual field defects lasting over 10 days.
- Comprehensive ophthalmic, neurologic, medical, and imaging evaluations were conducted.
Findings:
- No alternative etiology for vision loss was identified in either patient.
- Both patients demonstrated resolution of their persistent visual field defects.
- The cases are likely representative of a form of complicated migraine.
Implications:
- Existing literature suggests visual deficits from migraine typically become permanent if lasting over 7 days.
- This study demonstrates that visual recovery can occur even when defects persist for 10 days or longer.
- These findings challenge the established timeline for permanent migraine-related visual loss.