Optic cup (anatomical)
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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. Normally the cup should take up less than 50% of the disc.
[edit] References
- ^ Algazi VR, Keltner JL, Johnson CA (December 1985). "Computer analysis of the optic cup in glaucoma". Invest. Ophthalmol. Vis. Sci. 26 (12): 1759–70. PMID 4066212. http://www.iovs.org/cgi/pmidlookup?view=long&pmid=4066212.
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