Hemispheric Retinal Arteriovenous Anastomoses (Wyburn-Mason Syndrome) < Previous ArticleNext Article > Ophthalmic Images | November 12, 2015 Hemispheric Retinal Arteriovenous Anastomoses (Wyburn-Mason Syndrome) ONLINE ONLY Eric K. Chin, MD1; D. Brice Critser, BS, CRA1; David R. P. Almeida, MD, MBA, PhD1 [+] Author Affiliations JAMA Ophthalmol. 2015;133(11):e151687. doi:10.1001/jamaophthalmol.2015.1687.