Asymptomatic prepapillary vascular loop in two Saudi sisters: a case report

Prepapillary vascular loop (PVL) is a rare and asymptomatic condition. Due to the risk of bleeding following blunt trauma or occlusion in older people, PVL needs monitoring and intervention only if it presents with sight-threatening complications. Usually, it is a unilateral congenital malformation and could be of different grades in two eyes. Optical coherence tomography and optical coherence tomography angiography help diagnose even at younger ages. It is essential to rule out possible systemic malformation. We present a comprehensive assessment of asymptomatic PVL of a retinal loop in the right eye of grade “II” and grade “V” on the disc of the left eye in two sisters. Their parents and brother were without PVL.