Abstract
To evaluate the outcome of fenestration of the vertical rectus muscles in correcting vertical deviations. A retrospective chart review was conducted on patients who underwent fenestration surgery on the superior rectus (SR) or inferior rectus (IR) muscles. Ductions, versions, angle of deviations before and after surgery, and surgical details were analyzed. Success was defined as vertical alignment within 4 PD of orthophoria. Nineteen patients were identified. The mean age of the patients was 19.3 ± 13.1 (range; 4 to 48) years. The mean follow-up was 6.5 ± 2.7 (range, 3 to 12) months. Eleven patients presented with dissociated vertical deviation (DVD), 2 patients with sensory hypertropia, and 6 patients with sensory hypotropia. Fourteen patients had concomitant horizontal muscle surgery. The mean change of the angle of deviation was 13 ± 3 (range, 8 to 20) PD after SR fenestration. and 12 ± 2 (range; 10 to 15) PD after IR fenestration. There was a significant improvement in the post operative angle of deviation in both groups (P value <0.001). Success was achieved in 10 (77%) of patients who underwent SR fenestration and in all patients underwent ir fenestration. Only one patient in the IR group developed a 1-mm lower lid retraction. Fenestration of the vertical rectus muscles is an effective and safe method for correcting vertical deviations. We recommend increasing the amount of fenstration in DVD to further improve the outcome.
Published Version
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