University of Iowa Health Care

Ophthalmology and Visual Sciences

Axenfeld nerve loops

Contributor: Jesse Vislisel, MD

Photographer: Cindy Montague, CRA

Axenfeld nerve loops are loops of the long posterior ciliary nerves within the sclera, often located about 2.5-3mm posterior to the limbus. They are a normal anatomic landmark. The loops appear as gray or white nodules underlying the bulbar conjunctiva and are often surrounded by pigment. Some loops may share a scleral emissary channel with an artery. In this photo, multiple Axenfeld nerve loops can be seen arranged in an arc pattern roughly equidistant from the limbus.

Axenfeld loops

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Ophthalmic Atlas Images by, The University of Iowa are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

last updated: 3/9/2014
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