Sarcoid optic neuropathy without fundus lesions is unusual. We present a case of optic neuropathy with spontaneous remission in one eye that paralleled the clinical course of demyelinative acute optic neuritis. The fellow eye had disc swelling with normal visual acuity but with a large blind spot and distended optic nerve sheaths seen on ultrasonography. The diagnosis of sarcoidosis was made by characteristic chest roentgenographic findings and confirmed by skin biopsy.