NIHSeniorHealth: Glaucoma

Glaucoma Defined Causes and Risk Factors Symptoms and Diagnosis Treatment Frequently Asked Questions Videos MedlinePlus for More Information Printer friendly version		Glaucoma Frequently Asked Questions 2. What is the optic nerve? The optic nerve is a bundle of more than 1 million nerve fibers. It connects the retina to the brain.

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Last reviewed: 09 April 2007 First published: 15 June 2005 National Institute on Aging, U.S. National Library of Medicine National Institutes of Health, U.S. Department of Health & Human Services Contact us, Accessibility, Copyright, Privacy