To perform a quantitative optical coherence tomography (OCT) angiography (OCTA) analysis of macular neovascularization (MNV) secondary to age-related macular degeneration (AMD), central serous chorioretinopathy (CSC) and best vitelliform macular dystrophy (BVMD), with the aim of highlighting quantitative features indicating different clinical entities.
Study design: prospective, interventional. We recruited patients affected by AMD, CSC or BVMD, complicated by naive MNV. All patients underwent complete ophthalmologic examination and multimodal imaging. They were treated with anti-VEGF injections, following a pro-re-nata regimen. The ensuing follow-up lasted 1 year. Quantitative dye-based angiography, OCT, and OCTA parameters were analysed to obtain cutoff values able to distinguish two clinically different patient subgroups for each retinal disease. The main outcome measures were best-corrected visual acuity (BCVA), central macular thickness, vessel density of superficial, deep and choriocapillaris plexa, vessel tortuosity (VT) of MNV, vessel dispersion of MNV, number of injections, MNV/leakage ratio, MNV size, speckled fluorescence, and outer retinal atrophy.
Ninety-eight eyes affected by MNV (98 patients) were analysed. These included 66 eyes affected by AMD, 18 displaying CSC, and 14 eyes with BVMD. BCVA was alike in the three groups, both at baseline and after 1 year (p > 0.05). An MNV VT cutoff of 8.40 at baseline detected two patient subgroups differing significantly in terms of morpho-functional features, found both at baseline and at the end of the follow-up.
Quantitative OCTA suggested that the MNV’s VT might be able to provide a better characterization of two different morpho-functional manifestations in AMD, CSC and BVMD.
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Conflict of interest
FB is a consultant for Alcon (Fort Worth, Texas, USA), Alimera Sciences (Alpharetta, Georgia, USA), Allergan Inc. (Irvine, California, USA), Farmila-Thea (Clermont-Ferrand, France), Bayer Shering-Pharma (Berlin, Germany), Bausch And Lomb (Rochester, New York, USA), Genentech (San Francisco, California, USA), Hoffmann-La-Roche (Basel, Switzerland), Novagali Pharma (Évry, France), Novartis (Basel, Switzerland), Sanofi-Aventis (Paris, France), Thrombogenics (Heverlee, Belgium), Zeiss (Dublin, USA). All other authors declare that they have no conflict of interest.
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Arrigo, A., Bordato, A., Aragona, E. et al. Macular neovascularization in AMD, CSC and best vitelliform macular dystrophy: quantitative OCTA detects distinct clinical entities. Eye 35, 3266–3276 (2021). https://doi.org/10.1038/s41433-021-01396-2