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Lee and Rah: Surgical Outcome of Vertical Rectus Muscle Recession in Hypertropia
Original Article
Journal of the Korean Ophthalmological Society

Journal of the Korean Ophthalmological Society 2012; 53(7): 1011-1015.

Published online: 13 July 2012

DOI: https://doi.org/10.3341/jkos.2012.53.7.1011

Surgical Outcome of Vertical Rectus Muscle Recession in Hypertropia

Yun Ha Lee, MD, Sang Hoon Rah, MD, PhD

Department of Ophthalmology, Wonju Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea.

Address reprint requests to Sang Hoon Rah, MD, PhD. Department of Ophthalmology, Wonju Christian Hospital, #20 Ilsan-ro, Wonju 220-701, Korea. Tel: 82-33-741-1390, Fax: 82-33-741-1144, shrah@yonsei.ac.kr

Received 11 July 2011       Accepted 25 May 2012

Copyright © 2012 The Korean Ophthalmological Society

Abstract

Purpose

To determine the extent of vertical rectus muscle correction in hypertropia showing good prognosis.

Methods

A retrospective study was performed with a total of 16 patients who underwent superior or inferior rectus muscle recession surgery with a follow-up of more than 6 months. Vertical muscle recession of 1 mm per 2.5 to 3.0 prism diopters was performed according to the surgeon's discretion.

Results

At 1 week after surgical correction, undercorrection, orthophoria, and overcorrection was observed in 4, 7 and 5 cases, respectively. At the final examination, ocular deviation was decreased in the undercorrected cases and maintained orthophoric except in 1 case where only a small amount of deviation recurred. However, in the cases of postoperative overcorrectionn, ocular deviation increased; 2 cases required surgical correction for consecutive hypertropia.

Conclusions

When performing vertical rectus muscle recession in primary hypertropia, the amount of correction for orthophoria or undercorrection should be determined.

Keywords: Hypertropia, Inferior rectus muscle recession, Superior rectus muscle recession

Figures and Tables

Figure 1
Change of postoperative angle of Deviation (mean) (Mean: prismdiopter). (A) Post op 1 wk undercorrected group. (B) Post op 1 wk orthotropia group. (C) Post op 1 wk overcorrected group. 0 = orthotropia. +: overcorrected angle of deviation. -: undercerrected angle of deviation.
jkos-53-1011-g001
Figure 2
Surgical result of Hypertropia correction.
jkos-53-1011-g002
Table 1
Clinical data of patients
jkos-53-1011-i001

LHT = left hypertropia; RHT = right hypertropia; LSR = left superior rectus muscle recession; RSR = right superior rectus muscle recession; LIR = left inferior muscle recession; PD = prism diopter.

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