Plus disease diagnosis in retinopathy of prematurity: vascular tortuosity as a function of distance from optic disk.
Keck KM, Kalpathy-Cramer J, Ataer-Cansizoglu E, You S, Erdogmus D, Chiang MF. Plus disease diagnosis in retinopathy of prematurity: vascular tortuosity as a function of distance from optic disk. Retina. 2013 Sep; 33(8):1700-7.