Optic cup (anatomical)

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Optic cup
Optic cup and macula - 3D motion parallax.gif
Wiggle stereogram showing the optic cup in a healthy eye
Latin excavatio disci
TA A15.2.04.020
FMA 77664
Anatomical terminology

The optic cup is the white, cup-like area in the center of the optic disc.[1]

The ratio of the size of the optic cup to the optic disc (or cup-to-disc ratio) is measured to diagnose glaucoma. A normal cup to disc ratio is 0.3; a larger ratio may suggest glaucoma.

Read more about the optic cup here: http://www.wisegeek.com/what-is-the-optic-cup.htm


  1. ^ Algazi VR, Keltner JL, Johnson CA (December 1985). "Computer analysis of the optic cup in glaucoma". Investigative Ophthalmology & Visual Science. 26 (12): 1759–70. PMID 4066212.