Endoscopic Optic Nerve Sheath Fenestration
6 years ago
1.Transnasal endoscopic route gives access to optic nerve from orbital apex to optic chiasma.
2. When to do? When grade 3 papilloedema progresses to grade 4 [as ascertained by the ophthalmologist]
If color vision is affected
If there is constriction of peripheral visual field