A central retinal artery occlusion (or "CRAO") refers to a sudden blockage of the main artery which supplies blood to the eye. Patients typically complain of a "sudden painless loss of vision". The retina has a very white appearance to it.If caught quickly...various treatment options exist...to try to restore bloodflow to the retina.
If more than 24 hours have passed....treatment is typically not helpful.
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