S Weinacht1, A Huber, I Gottlob. 1. Department of Strabismus and Neuroophthalmology, Kantonsspital St. Gallen, Switzerland.
Abstract
PURPOSE: We report three patients with a rare variant of Duane's retraction syndrome. METHODS: Eye movements were recorded by electro-oculography. One patient underwent electro-myography. RESULTS: All patients showed V-incommitance and twitch abduction on vertical saccades. Electromyography showed lateral rectus muscle firing activity during upgaze and downgaze. CONCLUSION: Our patients showed synergistic innervation between the lateral rectus muscle and ipsilateral vertical acting muscles documented by electromyography.
PURPOSE: We report three patients with a rare variant of Duane's retraction syndrome. METHODS: Eye movements were recorded by electro-oculography. One patient underwent electro-myography. RESULTS: All patients showed V-incommitance and twitch abduction on vertical saccades. Electromyography showed lateral rectus muscle firing activity during upgaze and downgaze. CONCLUSION: Our patients showed synergistic innervation between the lateral rectus muscle and ipsilateral vertical acting muscles documented by electromyography.