Related Experiment Video
Updated: Mar 20, 2026

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
Published on: September 5, 2011
Unilateral persistent fetal vasculature coexisting with anterior segment dysgenesia
B Cañizares1, I Yago1, Á Piñero1
1Unidad de Oftalmología Infantil, Servicio de Oftalmología, Hospital Virgen de la Arrixaca, Murcia, España.
Case Report:
A case is presented of a 4 week-old female neonate with Peters anomaly (PA) and unilateral persistent foetal vasculature (PFV) referred to our centre due to esotropia. At 12 weeks of age, a penetrating keratoplasty and vitrectomy were performed without major complications in the immediate post-operative period. The patient is currently under an intensive treatment for amblyopia and secondary glaucoma.
Discussion:
Surgical treatment of PFV is controversial, with prevention of amblyopia, phthisis, and glaucoma being the main reasons for it. Patients with unilateral PFV and type II PA could be good candidates for this combined surgical procedure.
Related Concept Videos
Fetal Circulation
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Development of Blood Vessels
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...

