OSLI Retina

October 2016

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October 2016 ยท Vol. 47, No. 10 973 munications are localized to one sector of the retina, most commonly the macula. In Group 2, the anomalous vessels are larger than in Group 1. The arteriovenous malformations exhibit direct communication without interposition of capillary or arteriolar elements. Group 3 is the most severe form, with large-caliber vessels, resulting in retinal complications leading to severe visual impairment. The large-caliber anastomosing channels are intertwined and convoluted, and sepa- ration into arterial and venous components of such vessels is difficult. The clinical and OCTA charac- teristics of our patient would fit into Group 1 of this classification. REFERENCES 1. Brown GC, Donoso LA, Magargal LE, Goldberg RE, Sarin LK. Con- genital retinal macrovessels. Arch Ophthalmol. 1982;100(9):1430-1436. 2. de Crecchio G, Mastursi B, Alfieri MC, Pignalosa B. Congenital retinal macrovessel. Ophthalmologica. 1986;193(3):143-145. 3. Chronister CL, Nyman NN, Meccariello AF. Congenital retinal mac- rovessel. Optom Vis Sci. 1991;68(9):747-749. 4. Archer DB, Deutman A, Ernest JT, Krill AE. Arteriovenous communi- cations of the retina. Am J Ophthalmol. 1973;75(2):224-241. Figure 1. (a) Fundus image shows the aberrant vessel. (b) Optical coherence tomography angiography image of superficial retinal vas- culature showing aberrant retinal macrovessel. Figure 2. (a) Optical coherence tomography angiography (OCTA) and en face OCT images of superficial and deep retinal vasculature. (b) OCT B-scan showing hyperreflective dots (arrow) in the inner retina with mild shadowing due to the course of vessel around the fovea and fine hard exudates in outer plexiform/inner nuclear layer.

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