Incidence of and Risk Factors for Fellow-Eye Involvement in Sturge-Weber Syndrome Children With Unilateral Glaucoma

Precis: Among children with unilateral glaucoma associated with Sturge-Weber syndrome (SWS), 7 of 47 demonstrated involvement in the fellow eye, and that group had had earlier first-eye surgery relative to the noninvolvement group.Purpose: The aim of this study was to determine the incidence of and risk factors for fellow-eye involvement in children with unilateral SWS-associated glaucoma.Materials and Methods: Children diagnosed with a unilateral facial port-wine stain and ipsilateral glaucoma before the age of 5 and followed up for at least 5 years were enrolled. The incidence rates of fellow-eye glaucoma involvement were estimated per 100 person-years, and factors associated with a higher incidence of fellow-eye involvement were investigated.Results: A total of 47 children [24 (51.1%) girls] with unilateral SWS-associated glaucoma were included. All of them had facial port-wine stain involving ophthalmic division of the trigeminal nerve, and 18 (38.3%) had neurological comorbidities. The mean age at glaucoma diagnosis was 0.8 +/- 1.2 years [range, 0.08 (1 mo)-4.0 y]. Over a median follow-up of 8.4 years, glaucoma was diagnosed in the fellow eye of 7 of the children (14.9%; incidence rate of 1.8 per 100 person-years), 6 of whom were girls (P=0.097) and 5 of whom were diagnosed before the age of 4 years (P=0.508). The fellow-eye-involvement group showed significantly higher mean follow-up intraocular pressure in the fellow eye, older age at first-eye surgery (both P<0.005), and higher frequency of choroidal hemangioma both at first onset and in fellow eyes (P=0.026 and 0.019, respectively).Conclusions: In this cohort of SWS children diagnosed with unilateral glaucoma, the risk of fellow-eye involvement was higher in girls, within the first 4 years, and in cases with choroidal hemangioma. The fellow-eye-involved children underwent surgery on the first eye earlier than those without fellow-eye involvement.