SYMPOSIA PAPER Published: 01 January 1968



Vision is a complex phenomenon consisting of several basic components. Sight from external sources is brought to a focus on the retina of the eye. Changes are produced which initiate electrical impulses. These are conducted over the optic nerve and optic tract to the brain where the visual sensation is perceived and interpreted.

Author Information

McNamara, BP
Medical Research Laboratory, Research Laboratories, Edgewood Arsenal, Md.
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Developed by Committee: E18
Pages: 19–23
DOI: 10.1520/STP34660S
ISBN-EB: 978-0-8031-4572-6
ISBN-13: 978-0-8031-0784-7