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Opposite clear corneal incisions versus steep meridian incision phacoemulsification for correction of pre-existing astigmatism
Journal of Ophthalmic and Vision Research. 2008; 3 (2): 87-90
en Inglés | IMEMR | ID: emr-143554
ABSTRACT
To compare the efficacy of adding an opposite clear corneal incision [OCCI] on the steep meridian versus performing surgery on the steep meridian alone during phacoemulsification in reducing pre-existing corneal astigmatism. This randomized clinical trial was performed on 120 eyes with corneal astigmatism of > 1D undergoing phacoemulsification. Incisions were made based on the type of astigmatism as follows superior or superior + OCCI for with-the-rule and temporal or temporal + OCCI for against-the-rule astigmatism. Patients were followed with refraction, keratometry and topography. Statistical analysis was performed using one- and two-way ANOVA and Tukey-a test. Mean corneal astigmatism was 1.82 +/- 0.86 D in the superior + OCCI group and 1.74 +/- 0.86 D in the temporal + OCCI group preoperatively which decreased to 1.31 +/- 0.59 [P=0.013] and 1.19 +/- 0.64 [P=0.009] postoperatively respectively. No significant change occurred in the amount of astigmatism in any of the two single incision groups. Paired OCCI on the steep axis is a useful technique to correct mild to moderate pre-existing astigmatism with no need for particular skill or additional instruments
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Índice: IMEMR (Mediterraneo Oriental) Asunto principal: Astigmatismo / Procedimientos Quirúrgicos Operativos / Resultado del Tratamiento / Córnea / Topografía de la Córnea Tipo de estudio: Ensayo Clínico Controlado Límite: Femenino / Humanos / Masculino Idioma: Inglés Revista: J. Ophthalmic Vision Res. Año: 2008

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Índice: IMEMR (Mediterraneo Oriental) Asunto principal: Astigmatismo / Procedimientos Quirúrgicos Operativos / Resultado del Tratamiento / Córnea / Topografía de la Córnea Tipo de estudio: Ensayo Clínico Controlado Límite: Femenino / Humanos / Masculino Idioma: Inglés Revista: J. Ophthalmic Vision Res. Año: 2008