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After prone-position spinal surgery of 9 hours' duration, a 68-year-old woman was completely blind in both eyes. Moderate periorbital edema and temporal conjunctival chemosis were present bilaterally. Ophthalmic examination disclosed normal-appearing optic nerve heads, except for bilateral nasal fullness related to bilateral optic nerve drusen, and no retinal edema. Immediate cerebral arteriography, magnetic resonance imaging, and electroretinography were normal. Visual-evoked response was not detectable, and 7 weeks later, severe bilateral optic nerve head pallor developed. Severe selctive hypoperfusion of the retrobulbar optic nerves may occur after spinal surgery. Pressure to the periorbital region may be a contributing factor. |
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blindness
hypotension,systemic
iatrogenic neurologic disorders
neurologic complications of,surgery
optic neuropathy,ischemic
optic neuropathy,ischemic,posterior
postoperative neurologic complications
visual loss
visual loss,sudden
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