Differences

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--- optic_disc_area [2025/02/21 06:00] – created Scott Larson
+++ optic_disc_area [2026/02/11 22:23] (current) – Scott Larson
@@ Line 4: / Line 4: @@
   * Normal mean disc area is 2.27 mm² (st. dev ±0.412)
-<WRAP center round box 60%>
+<WRAP round box 60%>
-Distribution of Disc Area {{::disc_area.png?600|}}
+**Distribution of Disc Area from Marsh et al. 2010** {{::disc_area.png?600|}}
 </WRAP>
+<WRAP round box 60%> **Variation in Disc Area by Ethnicity from Girkin et al. 2011**
+^ Area of Descent             ^ African      ^ European     ^ Hispanic     ^ Indian       ^ Japanese     ^
+| Mean Disc Area in mm² (SD)  | 2.09 (0.41)  | 1.81 (0.38)  | 2.06 (0.37)  | 2.03 (0.31)  | 1.93 (0.37)  |
+</WRAP>
+====Conditions with abnormal disc area====
+  * [[optic_nerve_hypoplasia|Optic nerve hypoplasia]]
+  * [[megalopapilla|Megalopapilla]]
+====Resources====
+  * [[https://1drv.ms/b/c/31d83ae8e55e0542/EZGYBWdcTW1GtGVQIFkJqkkBQhyu3-p78HVOswwEmtKfpQ?e=tk9CKA|Marsh BC et al. Optic Nerve Head (ONH) Topographic Analysis by Stratus OCT in Normal Subjects: Correlation to Disc Size, Age, Ethnicity. J Glaucoma 2010;19(5):310-318]]
+  * [[https://1drv.ms/b/c/31d83ae8e55e0542/Ed8k3dWlVbFHk-W9PSFoU7IBQZFGtZpWRAt9UOrXkzbTbw?e=XfSVCp|Girkin CA et al. Variation in Optic Nerve and Macular Structure with Age and Race with Spectral-Domain Optical Coherence Tomography. Ophthalmology 2011;118:2403-2408]]
+  * [[https://1drv.ms/b/c/31d83ae8e55e0542/ETuJcb9DSVdBqJHF808IfUUBTppLzYTD6_1mrNPINHwE9w?e=AUbYxt|Table 2 from Girkin et al. Ophthalmology 2011;118:2403-2408]]
+{{tag>optic_disc}}

optic disc