Long-term visual and anatomic outcomes following early surgery for persistent fetal vasculature: a single-center, 20-year review

Abstract

Persistent fetal vasculature (PFV) is a spectrum of congenital anomalies caused by complete or partial failure of the ocular fetal vasculature to regress. We report the visual and anatomic outcomes in a large cohort of patients who underwent early surgery for PFV. We retrospectively reviewed the medical records of patients who underwent lensectomy and anterior or core vitrectomy for unilateral PFV without primary intraocular lens implantation through limbal or pars plana/plicata approach. Inclusion criteria were surgery prior to 7months of age, with at least 12months of follow-up. Eyes with severe posterior segment involvement and retinal detachment deemed beyond repair were excluded. A total of 58 patients met inclusion criteria. Mean age at surgery was 2.1±1.5months. Mean follow-up was 6.7±4.2years. At final follow-up, 19 eyes (33%) had visual acuity better than 1.0 logMAR. Thirty-three eyes (57%) developed 1 or more postoperative adverse events: glaucoma in 21 (36%) and retinal detachment in 11 (19%), 8 of which occurred in eyes that had pars plana or pars plicata incisions (P=0.002). In patients with limbal incisions, 17 of 40 (43%) achieved a visual acuity better than 1.0 logMAR, compared with 2 of 18 patients (11%) with a pars plana/pars plicata incision (P=0.03). In our study cohort, early surgery for PFV achieved functional visual acuity in about one-third of patients. Limbal approach to surgery may result in better visual acuity and anatomic results.