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  • Title: Double Augmented Vertical Rectus Transposition for Large-Angle Esotropia Due to Sixth Nerve Palsy.
    Author: Singh P, Vijayalakshmi P, Shetty S, Vora P, Kalwaniya S.
    Journal: J Pediatr Ophthalmol Strabismus; 2016 Nov 01; 53(6):369-374. PubMed ID: 27537250.
    Abstract:
    PURPOSE: To study the binocular alignment and ocular motility in patients with large-angle esotropia due to sixth nerve palsy treated with double augmented vertical recti transposition. METHODS: This was a prospective interventional study. Fifteen patients with non-resolving sixth nerve palsy who underwent surgical correction were included in the study. Fourteen patients also underwent an additional medial rectus recession. Two patients with an associated small vertical deviation had a selective augmentation of one vertical rectus muscle. Binocular alignment, ocular motility, duction limitation, improvement in head posture, induced vertical deviations, and field of diplopia-free binocular single vision (when possible) were analyzed. Successful outcome was defined as a residual horizontal deviation of 10 prism diopters (PD) or less with no vertical deviation at final follow-up (6 months). RESULTS: The double augmented Hummelsheim procedure improved esotropia from 58.3 ± 10.8 PD preoperatively to 7.2 ± 5.1 PD postoperatively (P = .001). Three (20%) patients had residual deviation of greater than 10 PD, of which 1 patient had diplopia and was treated with prisms. Postoperative binocular field of vision was performed in 6 patients, the mean of which was 20° for abduction and 45° for adduction. Three of 6 patients had elimination of face turn and the rest had residual head posture of less than 5°. Two patients had an induced vertical deviation of less than 4 PD. In patients who had selective augmentation, the vertical deviation was completely corrected. CONCLUSIONS: The patients operated on with double augmentation of the Hummelsheim procedure combined with medial rectus recession had reduced mean primary esotropia and improved diplopia-free field of vision postoperatively. [J Pediatr Ophthalmol Strabismus. 2016;53(6):369-374.].
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