Temporary conduction block of optic nerve after retrobulbar anesthesia.
Three patients who experienced temporary visual loss after retrobulbar anesthesia with 2% lidocaine (Xylocaine) are described. Visual evoked potentials (VEPs) consistently increased in latency and decreased in amplitude. Abnormal VEPs such as these recorded for humans after retrobulbar anesthesia are, to our knowledge, reported here for the first time.
Verma
L
L
Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi.
Arora
R
R
Kumar
A
A
D000328:Adult; D001766:Blindness / Q000209:etiology*; D005074:Evoked Potentials, Visual / Q000187:drug effects; D005260:Female; D006801:Humans; D008012:Lidocaine / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009431:Neural Conduction / Q000187:drug effects; D009900:Optic Nerve / Q000187:drug effects*; D014792:Visual Acuity
D008012:Lidocaine