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  • Title: [Tarsal switch levator for mitochondrial myogenic ptosis].
    Author: Lucci LM, Fonseca Junior NL, Sugano DM, Silvério J.
    Journal: Arq Bras Oftalmol; 2009; 72(2):159-63. PubMed ID: 19466321.
    Abstract:
    PURPOSE: To report the use of tarsal switch levator resection procedures that lift the palpebral fissure to visual axis without causing corneal complications in patients with mitochondrial myogenic ptosis. METHODS: Prospective study. The technique consists of an upper eyelid tarsectomy, with transfer of the autologous tarsoconjunctival graft to the posterior lamella of the lower eyelid. The surgeries were performed under local anesthesia. In case of diplopia, the surgery was performed in one eye. RESULTS: Tarsal switch procedure was performed in 9 eyes of 6 patients with mitochondrial myopathy. There were 5 women; the average age was 59.8 years and the follow-up ranged from 30 to 60 months. The palpebral fissure was moved cephalad in all patients, unmasking their visual axis in primary position and improving their head position. There was no patient with exposure symptoms after surgery. CONCLUSION: The tarsal switch procedure is useful in managing the eyelid malpositions in patients with poor eye protective mechanisms because it elevates both the upper and the lower eyelids, decreasing or eliminating the risk of lagophthalmos with corneal complications.
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