Characteristics of the Optic Disc Cup
- 1 March 1985
- journal article
- research article
- Published by Wolters Kluwer Health in Optometry and Vision Science
- Vol. 62 (3) , 195-202
- https://doi.org/10.1097/00006324-198503000-00008
Abstract
The frequency distribution of the optic cup/optic disc ratio (CDR) and the optic cup depth (OCD) were investigated using clinical data. The mean CDR is 0.30 (SD = 0.13), and the mean OCD is 2.10 D (SD = 0.89 D). Seventy-four percent of 1352 eyes had a CDR of 0.3 or less, and 68% of 1168 eyes had an OCD of 2 D or less. The distribution of the CDR's differs from a normal distribution, but that of the OCD's is nearly normal.Keywords
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