Post-surgical left oculomotor nerve neuromyotonia: Cause or coincidence?

Ocular neuromyotonia (ONM) is characterized by episodes of binocular diplopia usually triggered by an eye movement requiring contraction of the affected extraocular muscle. It consists of an involuntary, sometimes painful contraction of one or more extraocular muscles. It is most often secondary to radiotherapy of the para-sellar region, although other aetiologies have been reported.