Optic cup (anatomical)
| Optic cup | |
|---|---|
 Wiggle stereogram showing the optic cup in a healthy eye | |
| Details | |
| Identifiers | |
| 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 (cup-to-disc ratio, or C/D) is one measure used in the diagnosis of glaucoma. Different C/D's can be measured horizontally or vertically in the same patient. C/D's vary widely in healthy individuals. However, larger vertical C/D's, or C/D's which are very different between the eyes, may raise suspicion for glaucoma. A C/D which enlarges vertically over months or years suggests glaucoma.
References
- ↑ 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.
| Fibrous tunic (outer) |
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| Uvea/vascular tunic (middle) |
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| Retina (inner) |
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