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Persistent fetal vasculature: ocular features, management of cataract and outcomes
Marcia Beatriz Tartarella1, Rodrigo Ueno Takahagi, Ana Paula Braga
1Department of Ophthalmology, School of Medicine, Universidade Federal de São Paulo, São Paulo (SP), Brazil.
Insights
Persistent fetal vasculature (PFV) presents variably and is linked to congenital cataracts. While cataract surgery in PFV patients carries risks, 83% of operated eyes showed improved vision.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Genetics
Background:
- Persistent fetal vasculature (PFV) is a congenital eye anomaly resulting from the failure of the primary vitreous to regress.
- It can lead to significant visual impairment, including congenital cataracts, and requires specialized management.
- Understanding the ocular features and outcomes is crucial for effective patient care.
Purpose of the Study:
- To delineate the ocular characteristics of persistent fetal vasculature (PFV).
- To describe the surgical management strategies for congenital cataracts in PFV patients.
- To evaluate the functional visual outcomes following cataract surgery in this cohort.
Main Methods:
- A retrospective, descriptive case series was conducted.
- Data from 46 patients (53 eyes) diagnosed with PFV between 2001 and 2012 were analyzed.
- Ocular features, systemic findings, surgical interventions, and visual acuities pre- and post-operatively were recorded. Ultrasound and eco-Doppler were utilized.
Main Results:
- The study included 53 eyes with PFV, with a mean age at diagnosis of 22.7 months. Combined anterior and posterior forms were most common (79.2%).
- Cataract surgery was performed on 38 eyes, with lensectomy and vitrectomy (47.4%) or phacoaspiration (39.5%) being primary methods.
- Postoperative complications occurred in 50% of operated eyes, yet 83% achieved improved visual acuity.
Conclusions:
- Persistent fetal vasculature exhibits diverse clinical presentations and is associated with congenital cataracts.
- Cataract surgery in PFV patients is linked to severe complications but offers significant visual improvement in the majority of cases.
- This highlights the importance of careful surgical planning and management for favorable visual outcomes.
Purposes:
To describe ocular features, management of cataract and functional outcomes in patients with persistent fetal vasculature.
Methods:
Retrospective, descriptive case series of patients with persistent fetal vasculature. Data were recorded from the Congenital Cataract Section of Federal University of São Paulo, Brazil from 2001 to 2012. All patients were evaluated for sex, age at diagnosis, systemic findings, laterality, age at surgery, and initial and final follow-up visual acuities. Follow-up and complications after cataract surgery were recorded. Ultrasound was performed in all cases and ocular eco-Doppler was performed in most.
Results:
The study comprised 53 eyes from 46 patients. Age at diagnosis ranged from 5 days of life to 10 years-old (mean 22.7 months). Twenty-seven patients were male (58.7%). Persistent fetal vasculature was bilateral in 7 patients (15.2%). Forty-two eyes (79.2%) had combined (anterior and posterior forms) PFV presentation, 5 eyes (9.4%) had only anterior persistent fetal vasculature presentation and 6 eyes (11.3%) had posterior persistent fetal vasculature presentation. Thirty-eight eyes (71.7%) were submitted to cataract surgery. Lensectomy combined with anterior vitrectomy was performed in 18 eyes (47.4%). Phacoaspiration with intraocular lens implantation was performed in 15 eyes (39.5%), and without lens implantation in 5 eyes (13.2%). Mean follow-up after surgery was 44 months. Postoperative complications were posterior synechiae (3 cases), retinal detachment (2 cases), phthisis (3 cases), posterior capsular opacification (8 cases), inflammatory pupillary membrane (5 cases), glaucoma (4 cases), intraocular lens implantation displacement (1 case) and vitreous hemorrhage (2 cases). Complications were identified in 19 (50%) of the 38 operated eyes. Visual acuity improved after cataract surgery in 83% of the eyes.
Conclusions:
Patients with persistent fetal vasculature have variable clinical presentation. There is an association of persistent fetal vasculature with congenital cataract. Severe complications are related to cataract surgery in patients with persistent fetal vasculature, but 83% of the operated eyes improved visual acuity.
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