Optociliary Shunt

Optociliary Shunt 

  • Acquired disc collateral between the retinal and the ciliary circulations.
  • May present as an important finding of optic nerve sheat meningioma.
  • Commonly develop as a complication of central retinal vein occlusion.

Sign:

  • Tortuous vascular loops that start and end on the disc
  • Can be distinguished from disc neovascularization by their:
    • Larger caliber
    • Lack of leakage in fluorescein angiogram