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Congenital cataract associated with persistent fetal vasculature: findings from IoLunder2
A L Solebo1,2,3,4, I Russell-Eggitt2,4, P Cumberland1,4
1Lifecourse Epidemiology and Biostatistics Section, Population, Policy and Practice Programme, University College London Institute of Child Health, London, UK.
Insights
Persistent fetal vasculature (PFV) affects 24% of children undergoing cataract surgery in their first two years. Outcomes for PFV patients are similar to general cataract surgery cases.
Area of Science:
- Ophthalmology
- Pediatric Surgery
- Genetics
Background:
- Persistent fetal vasculature (PFV) is a congenital eye condition.
- Understanding PFV's prevalence and impact in pediatric cataract surgery is crucial.
Purpose of the Study:
- To determine the frequency and characteristics of PFV in children.
- To evaluate treatment outcomes for PFV in pediatric cataract surgery patients.
Main Methods:
- Observational, population-based cohort study.
- Utilized active surveillance and standardized data collection via the British Isles Congenital Cataract Interest Group (BCCIG).
Main Results:
- PFV identified in 24% of 246 children undergoing cataract surgery within the first two years of life.
- Higher prevalence of anterior segment vascular remnants in bilateral PFV (75%) compared to unilateral (11%).
- One-year post-surgery visual outcomes were 20% (bilateral PFV) and 24% (unilateral PFV); glaucoma prevalence was 9% (bilateral) and 4% (unilateral).
Conclusions:
- PFV is more prevalent than previously thought in pediatric cataract cases.
- Outcomes for children with PFV are comparable to those with congenital and infantile cataracts overall.
Abstract:
PurposeTo describe the frequency, characteristics, and treatment outcome of persistent fetal vasculature (PFV) in children undergoing surgery for congenital and infantile cataract in the first 2 years of life.Patients and methodsObservational population-based cohort study with case identification through active surveillance and standardised data collection via a national clinical network, the British Isles Congenital Cataract Interest Group (BCCIG).ResultsThe IoLunder2 cohort comprises 246 children undergoing surgery for bilateral and unilateral congenital and infantile cataract in the first 2 years of life. A total of 58/246 (24%) children had PFV (%): overall, 46/95 (46%) with unilateral cataract, and 12/141 (8%) with bilateral disease. Anterior segment vascular remnants were more common in bilateral than unilateral disease (75 vs 11%, P=0.01). At 1 year after surgery, 20% of children with bilateral PFV and 24% with unilateral had achieved normal vision for age within the operated eye. The prevalence of post-operative glaucoma was 9% (of children with bilateral disease) and 4% (unilateral).ConclusionPFV is significantly more common than previously reported, and outcomes are comparable to that for congenital and infantile cataract overall.
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