Eye
Orbit and optic nerve
Coloboma of optic nerve

Author: Nat Pernick, M.D. (see Authors page)

Revised: 11 May 2018, last major update February 2014

Copyright: (c) 2004-2018, PathologyOutlines.com, Inc.

PubMed Search: coloboma [title] optic nerve

Cite this page: Pernick, N. Orbit and optic nerve: coloboma of optic nerve. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/eyeorbitcoloboma.html. Accessed December 17th, 2018.
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