Table 1.

Clinical features of eyes with progressive posterior-type stage 4A retinopathy of prematurity

GA = gestational age; ROP = retinopathy of prematurity; LSV = lens-sparing vitrectomy; F = female; M = male; W = week; D = day; OD = right eye; OS = left eye; APROP = aggressive posterior retinopathy of prematurity; ++ = severe; - = absent; + = mild to moderate; TRD = tractional retinal detachment; PRH = preretinal hemorrhage; EFP = extraretinal fibovascular proliferation; VH = vitreous hemorrhage.

^*Cases that had been included in the previous study by Yu et al. [5].