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  • Title: Marcus Gunn Jaw-Winking Synkinesis With Ipsilateral Eyelid Myokymia.
    Author: Althaqib RN, Khan AO, Alsuhaibani AH.
    Journal: Ophthalmic Plast Reconstr Surg; 2020; 36(6):566-568. PubMed ID: 32810032.
    Abstract:
    PURPOSE: To describe a novel observation of ipsilateral eyelid myokymia in the context of Marcus Gunn jaw-winking synkinesis (MGJWS). METHODS: A retrospective case series of 5 patients observed to have myokymia in the context of MGJWS in 2 tertiary hospitals in Riyadh, Saudi Arabia was conducted. Demographic profile including age and gender, and clinical features were analyzed. RESULTS: Five patients (3 males and 2 females) with MGJWS were noted to demonstrate the phenomenon of ipsilateral eyelid myokymia. All but 1 had right-sided MGJWS. The myokymia was seen as upper eyelid twitching in a vertical fashion along the levator palpebrae superioris muscle field of action. All subjects also had ipsilateral Monocular elevation deficiency. CONCLUSION: Ipsilateral upper eyelid myokymia is a potential feature of MGJWS. Monocular elevation seems to be a constant feature among MGJWS patients with levator muscle myokymia.Marcus Gunn jaw-winking synkinesis (MGJWS) is not well understood. Ipsilateral eyelid myokymia is a potential feature of MGJWS. This finding suggests that peripheral dysinnervation is likely to be a part of MGJWS.Supplemental Digital Content is available in the text. Marcus Gunn jaw-winking synkinesis (MGJWS) is not well understood. Ipsilateral eyelid myokymia is a potential feature of MGJWS. This finding suggests that peripheral dysinnervation is likely to be a part of MGJWS. Supplemental Digital Content is available in the text.
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