Contrast-induced transient cortical blindness.
We present a case of transient cortical blindness secondary to contrast medium toxicity. A 58-year-old man had successful endovascular coiling of a right posterior inferior cerebellar artery aneurysm but became confused and unable to see after the procedure. His visual acuity was no light perception bilaterally. Clinically, there was no new intra-ocular pathology. An urgent non-contrast computed tomography scan of the brain showed cortical hyperdensity in both parieto-occipital cortices, consistent with contrast medium leakage through the blood-brain barrier from the coiling procedure. The man remained completely blind for 72 hours, after which his visual acuity improved gradually back to his baseline level.
Royal Prince Alfred Hospital, Camperdown, Australia. parth13786@yahoo.com.au
Parth R
PR
Shah
Jayshan
J
Yohendran
Geoffrey D
GD
Parker
Peter J
PJ
McCluskey
D019575:Blindness, Cortical / Q000139:chemically induced*; D003287:Contrast Media / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014792:Visual Acuity
D003287:Contrast Media