Eye
Orbit & optic nerve
Coloboma
Author: Nat Pernick, M.D.
Last author update: 1 February 2014
Last staff update: 22 December 2020
Copyright: 2004-2023, PathologyOutlines.com, Inc.
PubMed Search: coloboma [title] optic nerve
Cite this page: Pernick N. Coloboma. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/eyeorbitcoloboma.html. Accessed September 21st, 2023.
Definition / general
- Unilateral abnormality of optic nerve head, of congenital origin
- Complete coloboma may form large hole or posterior protrusion near optic nerve
Microscopic (histologic) description
- Large defect with mostly bare sclera, lined by fibrous or glial tissue
- May involve retina and choroid along its edges
