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  • Title: Lateral rectus muscle recession for intermittent exotropia with anomalous head position in type 1 Duane's retraction syndrome.
    Author: Lee JY, Park KA, Oh SY.
    Journal: Graefes Arch Clin Exp Ophthalmol; 2018 Dec; 256(12):2467-2471. PubMed ID: 30062561.
    Abstract:
    BACKGROUND: We questioned how to treat for intermittent exotropia in type 1 Duane's retraction syndrome (DRS). To avoid secondary abduction deficit and late overcorrection on the affected eye following ipsilateral lateral rectus (LR) recession, we performed less correction of the lateral rectus (LR) recession to correct exodeviation and anomalous head position (AHP). We report the surgical outcomes of LR recession in patients with unilateral type 1 DRS. METHODS: Four patients who underwent less correction of LR recession in the affected eye to correct intermittent exotropia and AHP to the contralateral side in type 1 DRS were enrolled. Data on preoperative and postoperative angle of exodeviation, degree of AHP, ocular motility, global retraction, palpebral fissure change, and complications were retrospectively obtained. Success was defined as postoperative deviation within 8 prism diopters (PD) and AHP < 5°. RESULTS: The preoperative angles of exodeviation and AHP were significantly improved after LR recession. The median grade of abduction limitation was improved from - 1.3 to - 0.8 postoperatively. Final median value of deviation was orthotropia in the primary position of the eye with the normal motility. All patients had successful outcomes without overcorrection or further abduction limitation in DRS eyes. CONCLUSIONS: Less correction of ipsilateral LR recession may be useful for correcting intermittent exotropia and AHP in patients with type 1 DRS.
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