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Why do patients with optic neuritis have painful eye movement?

Because the optic nerve is inflammed, it hurts when it moves.  More specifically, the superior and medial rectus muscles attach to the Annulus of Zinn next to the sheath of the optic nerve such that movement of these muscles causes traction and pain.

ID: 43 , Updated: May 12, 2008
Tags: , , , ,
Difficulty: 1 Star (dumb)2 Stars (easy)3 Stars (average)4 Stars (hard)5 Stars (impossible)
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