RESULTS OF MONOCULAR SURGERY UNDER PERIBULBAR ANESTHESIA FOR LARGE-ANGLE HORIZONTAL STRABISMUS

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  • Data de Criação 13/04/2022
  • Ultima Atualização 13/04/2022

OBJECTIVE: To evaluate the results of monocular surgery under peribulbar anesthesia for large-angle horizontal strabismus.
INTRODUCTION:
Monocular surgery may preserve some muscles if a repeat operation is required, may help to avoid the exposure of the dominant eye to the inherent risks of a surgical procedure and may reduce surgical time.
METHODS:
We evaluated ninety-two consecutive patients who underwent monocular surgery under peribulbar anesthesia for large-angle horizontal strabismus (angle of 40 prism diopters or greater). Patients were divided into group 1- esotropia and group 2 –exotropia. The postoperative follow-up was at 6 months, when the residual deviation was evaluated. In cases of residual deviations of over 15 PD (prism diopter), a second procedure was indicated.
RESULTS
: In all patients with preoperative deviations up to 60 PD, residual deviations were under 15 PD. Some patients with preoperative deviations of 65 PD (two in group 1 and four in group 2) and all patients with deviations over 65 PD had residual deviations over 15 PD. The 13 patients who underwent a second procedure experienced successful outcomes. Our ROC curve analysis showed that the cutoff point for obtaining a successful surgical result was 62.5 PD. No patient presented with a major limitation in respect of ocular movement.
CONCLUSIONS:
Monocular surgery under peribulbar anesthesia can be an alternative for horizontal large-angle strabismus given deviations of up to 60 PD. Monocular surgery did not result in successful outcomes for deviations of over 65 PD.


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2009 Clinics 64(4) 303-8 Results of Monocular Surgery Under Peribulbar Anesthesia for Large-Angle Horizontal Strabismus-Tatiana.pdfViewDownload

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Tem experiência na área de Medicina, com ênfase em Cirurgia Oftalmológica, atuando na área acadêmica nas seguintes linhas de pesquisas: cirurgia estrabológica, ambliopia e visão binocular, baixa visão, qualidade de vida, auxílios ópticos, reabilitação visual e visão subnormal, educação médica, educação a distância.

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