Choroidal Vascularity Index as a Biomarker for Visual Response to Antivascular Endothelial Growth Factor Treatment in Diabetic Macular Edema

Figure 2

Baseline optical coherence tomography (OCT) morphological features between responders and nonresponders. Baseline choroidal vascularity index (CVI) (a). Adjusted ellipsoid zone (EZ) reflectivity (b). Proportion of disorganization of the retinal inner layers (DRIL) (c). Subretinal fluid (SRF) (d) in responders and nonresponders. The left eye of a 50-year-old man had a baseline CVI of 62%. Her baseline BCVA was 20/100. After three injections of VEGF inhibitors, the visual acuity decreased to 20/160. The treated eyes were categorized as nonresponders (e). The right eye of a 44-year-old man had a baseline CVI of 69%. Her baseline BCVA was 20/63. After three injections of VEGF inhibitors, the visual intensity increased to 20/40. The treated eyes were categorized as responders (f).

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