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  • Title: [Simplification in locating and dissecting the levator muscle of the upper eyelid in surgery for ptosis].
    Author: Marcoli F, Adenis JP, Ferrara V, Ghisolfi A.
    Journal: J Fr Ophtalmol; 1997; 20(7):554-60. PubMed ID: 9499982.
    Abstract:
    BACKGROUND: While repairing eyelid ptosis by aponeurotic resection by anterior approach, the risk of damaging the levator complex and the conjunctiva is significant. In order to simplify the dissection between Müller's muscle and the underneath conjunctiva, we use a modification of the usual surgical technique. METHODS: Before the skin incision, the eversion of the upper eyelid allows to dissect the conjunctiva from the Müller's muscle under direct visual control, starting from the upper tarsal margin. A silicone band is then passed through the so created horizontal subconjunctival tunnel. The upper eyelid can be physiologically replaced, and the levator muscle aponeurosis exposed. The two ends of the band are then pulled on surface through two lateral incision performed close to the upper tarsal edge. Now the band plays the role of a useful landmark: every tissue above the band is levator complex; when stretched downwards, it points the upper edge of the tarsal plate. We operated by this technique 24 eyes, affected of acquired or congenital ptosis. Fourteen eyelids had already undergone ptosis surgery elsewhere. RESULTS: We achieved good-to-excellent results in all cases, without any important postoperative complications. CONCLUSIONS: The proposed manoeuvre makes easier the dissection of the inner aspect of the levator complex, because of the material control. Therefore it minimises the tissue trauma and the postoperative complications, particularly in complicated cases characterised by scarring and fibrosis.
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