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Comparison of Postoperative Exodrift after First Unilateral and Second Contralateral Lateral Rectus Recession in Recurrent Exotropia
Korean Journal of Ophthalmology ; : 48-52, 2016.
Artigo em Inglês | WPRIM | ID: wpr-197514
ABSTRACT

PURPOSE:

To compare postoperative exodrift of the first unilateral lateral rectus (ULR) muscle recession with the exodrift of the second contralateral ULR muscle recession in patients with recurrent small-angle exotropia (XT).

METHODS:

We evaluated the results of a second ULR muscle recession in 19 patients with recurrent XT with deviation angles under 25 prism diopter (PD), following a first procedure of ULR muscle recession for small-angle XT. Recession of the lateral rectus muscle ranged from 8 to 9 mm. The postoperative motor alignment and degree of exodrift were investigated after the first ULR muscle recession and the second ULR muscle recession in the same patients.

RESULTS:

Observed differences in postoperative ocular alignment between the first ULR muscle recession and the second ULR muscle recession were statistically significant at follow-up periods of six months (7.84 +/- 4.43 vs. 3.89 +/- 3.47 PD), one year (9.58 +/- 4.97 vs. 5.21 +/- 4.94 PD), and at a final follow-up (21.11 +/- 2.98 vs. 7.52 +/- 4.06 PD) after surgery (p = 0.006, 0.013, and 0.000). Postoperative exodrift was statistically different between the first and second ULR muscle recessions at three to six months (2.89 +/-3.75 vs. 0.63 +/- 3.45 PD) and one year to final follow-up (11.52 +/- 5.50 vs. 2.32 +/- 3.53 PD) (p = 0.034 and 0.000). All of the first ULR muscle recession patients showed XT with deviation angles of more than 15 PD at the final follow-up. Regardless, the surgical success rate (<8 PD) after the second ULR recession was 63.16% (12 patients) among the total amount of patients with recurrent XT.

CONCLUSIONS:

This study shows that changes in exodrift after a second ULR muscle recession are less than changes after the first URL muscle recession among patients with recurrent XT. A second ULR muscle recession may be a useful surgery for small-angle XT patients with deviation angles of 25 PD or less after a first ULR muscle recession.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Complicações Pós-Operatórias / Recidiva / Procedimentos Cirúrgicos Oftalmológicos / Visão Binocular / Exotropia / Estudos Retrospectivos / Seguimentos / Músculos Oculomotores Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Criança / Criança, pré-escolar / Feminino / Humanos / Masculino Idioma: Inglês Revista: Korean Journal of Ophthalmology Ano de publicação: 2016 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Complicações Pós-Operatórias / Recidiva / Procedimentos Cirúrgicos Oftalmológicos / Visão Binocular / Exotropia / Estudos Retrospectivos / Seguimentos / Músculos Oculomotores Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Criança / Criança, pré-escolar / Feminino / Humanos / Masculino Idioma: Inglês Revista: Korean Journal of Ophthalmology Ano de publicação: 2016 Tipo de documento: Artigo