Question

Eye and Vision

What causes retinal-vein occlusion (RVO)?

A Answers (1)

  • AAbdhish Bhavsar, Ophthalmology, answered on behalf of American Academy of Ophthalmology
    A retinal-vein occlusion (RVO) occurs when a vein in the eye's retina is blocked. There are two main types of retinal-vein occlusion: Central retinal-vein occlusion (CRVO), when the main vein of the eye (located at the optic nerve) becomes blocked; and branch retinal-vein occlusion (BRVO), when one of the smaller branches of vessels attached to the main vein becomes blocked.
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