- Central retinal artery occlusion: infarction of retina
What is it ?
- Infarction
- Can either be caused by thrombosis or embolic occlusion
- Thrombosis
- systemic hypertension
- dyslipidemia
- hyper coagulable states
- Embolus
- cervical carotid bifurcation
- abnormalities of cardiac valves, wall or rhythm e.g. atrial fibrillation
How does it appear ?
- Sudden painless loss of vision usually confined to one eye
- Afferent pupil defect in affected eye
- Milky appearance of retina because ischemic swelling causes loss of its transparency
- Cherry-red spot in fovea (spared because it is nourished by choroidal rather than retinal arteries)
Management
- Refer to hospital immediately for further evaluation
- Needs stroke workup
- Massage globe digitally
References
- the eye have it
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