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Published on: November 12, 2020
Gaze-induced amaurosis from central retinal artery compression
M E Knapp1, P M Flaharty, R C Sergott
1Neuro-ophthalmology Service, Wills Eye Hospital, Philadelphia, PA 19107.
Ophthalmology
|February 1, 1992
Summary
Gaze-induced amaurosis, a transient vision loss triggered by eye movement, was linked to an orbital mass compressing the central retinal artery. Surgical removal resolved the vision loss and restored normal blood flow.
Area of Science:
- Ophthalmology
- Neuro-ophthalmology
- Medical Imaging
Background:
- Gaze-induced amaurosis is a rare condition characterized by temporary vision loss during eye movements.
- Intraconal orbital masses can potentially affect ocular structures and vasculature.
Observation:
- Color Doppler imaging evaluated a patient with gaze-induced amaurosis due to an intraconal orbital mass.
- Abducting the affected eye caused transient visual loss and pupil unresponsiveness.
- This maneuver significantly reduced central retinal artery blood flow on Doppler imaging.
Findings:
- The patient presented with abnormally high vascular resistance in the central retinal artery in the primary position.
- Surgical excision of the orbital mass led to the complete resolution of gaze-evoked amaurosis.
- Post-operative imaging confirmed normalized blood flow in the central retinal artery.
Implications:
- Compressive orbital lesions can impair retinal and optic nerve blood flow, causing gaze-induced amaurosis.
- Color Doppler imaging is a valuable tool for diagnosing and understanding the pathophysiology of such conditions.
- Prompt surgical intervention can effectively treat gaze-induced amaurosis secondary to orbital masses.
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