What is the role of OCT angiography (OCTA) in the workup of central retinal vein occlusion (CRVO)?

Updated: Apr 18, 2019
  • Author: Lakshmana M Kooragayala, MD; Chief Editor: Douglas R Lazzaro, MD, FAAO, FACS  more...
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Answer

OCT angiography (OCTA) generates high-resolution noninvasive angiograms (no dye injection required) that qualitatively illustrate most clinically relevant findings in retinal venous occlusion. Unlike standard fluorescein angiography, OCTA provides details of superficial and deep retinal capillary plexus and choroidal capillary structures, which are affected by retinal vein occlusions. OCT angiography is a useful tool in evaluating capillary nonperfusion, which can allow for more objective differentiation of ischemic CRVO from nonischemic CRVO. [22, 23, 21]


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