Wu Y, Peng C, Ding X, et al. - In young Sturge–Weber syndrome (SWS) patients [aged below 4 years old], researchers intended to determine if there is an association between episcleral hemangioma distribution patterns and trabeculotomy prognosis. Participants in the study were 46 consecutive SWS individuals (50 eyes) who had trabeculotomy at the Department of Ophthalmology, Shanghai Ninth People’s Hospital, from February 2016 to June 2017. According to their episcleral hemangioma patterns, every patient could be divided into a simple episcleral vascular abnormal network (SEVAN) or multiple episcleral vascular abnormal network (MEVAN) groups. Twenty-six eyes were in the SEVAN group whereas the MEVAN group had 24 eyes. According to this retrospective cohort study, hemangiomas displayed contrasting patterns of distribution between SEVAN and MEVAN. In young SWS patients with MEVAN, trabeculotomy had a poorer prognosis than in those with SEVAN. Vascular factors can contribute to the aetiology of SWS early-onset glaucoma in addition to anterior abnormalities in the chamber angle.