Outcomes of the Harada–Ito Procedure. Issue 3 (3rd July 2021)

• Record Type: Journal Article
• Authors: Murray, Craig; Marsh, Ian; Newsham, David
• Is Part Of: Journal of binocular vision and ocular motility. Volume 71:Issue 3(2021)
• Page Start: 97
• Page End: 103
• Publication Date: 2021-07-03
• Subjects: Fourth nerve palsy -- Harada Ito -- superior oblique palsy -- torsion; Eye -- Movements -- Periodicals; Eye -- Movement disorders -- Periodicals; Binocular vision -- Periodicals; Binocular vision; Eye -- Movements; Vision, Binocular; Ocular Motility Disorders; Ophthalmology; Periodicals; Periodical; Electronic journals; 617.762
• DOI: Https://www.tandfonline.com/doi/10.1080/2576117X.2021.1915728
• Languages: English
• ISSNs: 2576-117X

Abstract

ABSTRACT: Purpose: Fell's modification of the Harada–Ito (HI) procedure is often used to tackle subjective torsion usually following superior oblique palsy. There is limited published data on the longer-term outcomes and the effect on horizontal incomitance of the procedure. The purpose of this study is to report on the medium to long-term outcomes of the HI procedure. Materials and methods: A retrospective review of 20 patients who had all undergone a single surgeon modified HI procedure to correct subjective torsion was undertaken. Follow-up data were analyzed in relation to stability of torsion measurements, the effect on vertical incomitance of horizontal deviation and the final treatment outcome. Results: There was a significant reduction in median maximum torsion from preoperative to immediately post-op ( p < .01) and there remained a significant difference in maximum torsion from preoperative measurement at both the 3-month ( p = .02), and 12-twelve month ( p = .01) follow-up. HI had a significant effect on associated V-pattern esotropia ( p < .05). Conclusion: The HI procedure is effective in eliminating subjective torsion initially and reducing incomitant horizontal deviation; however, regression toward preoperative torsion measurement occurs after time.