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Optic nerve sheath decompression in the treatment of progressive nonarteritic ischemic optic neuropathy.

1. Visual loss improves when optic nerve sheath decompression is used in treating progressive nonarteritic ischemic optic neuropathy. 2. Repeated neuro-ophthalmic examinations, including visual acuity, visual field testing, and color vision testing, should be done weekly to detect progression of nonarteritic ischemic optic neuropathy. 3. Postoperatively, the neuro-ophthalmologist monitors for visual acuity, proptosis, evidence of retro-orbital hemorrhage, loss of normal motility, evidence of pupil malfunction, and disc hemorrhages.