| Título: | Opposite Clear Corneal Incisions versus Steep Meridian Incision Phacoemulsification for Correction of Pre-existing Astigmatism |
| Autores: |
Noushin Bazzazi; Besat Hospital, Hamedan Medical University, Hamedan Behzad Barazandeh; Besat Hospital, Hamedan Medical University, Hamedan Mani Kashani; Besat Hospital, Hamedan Medical University, Hamedan Maryam Rasouli; Besat Hospital, Hamedan Medical University, Hamedan |
| Fecha: | 2008-12-08 |
| Publicador: | Ophthalmic Research Center |
| Fuente: |
Ver documento |
| Tipo: | |
| Tema: | No aplica |
| Descripción: | PURPOSE: 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. METHODS: 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. RESULTS: 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. CONCLUSION: 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. |
| Idioma: | Inglés |
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