The persistence of a small part of the posterior portion of the hyaloid artery is referred to as Bergmeister papilla. This anomaly generally takes the form of a veil-like structure or a fingerlike projection extending anteriorly from the surface of the optic nerve head (Fig 10-3). Retinal vessels may grow into a Bergmeister papilla and then return to the optic nerve head, creating prepapillary vascular loops (see Figure 17-9 in BCSC Section 12, Retina and Vitreous).
Excerpted from BCSC 2020-2021 series: Section 4 - Ophthalmic Pathology and Intraocular Tumors. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.