Posters

Comparison of surgically-induced astigmatism of temporal vs superior clear corneal incisions for IOL implantation in 0.7mm biaxial phacoemulsification

Poster Details

First Author: A.Pérez-Arteaga MEXICO

Co Author(s):                        

Abstract Details

Purpose:

Comparison of the astigmatism induced by the operation based on the use of 0.7mm Biaxial Phacoemulsification and a third 2.4 mm keratome-based clear corneal incision performed only for IOL implantation, by temporal approach and superior approach.All cases no stitches.

Setting:

Centro Oftalmológico Tlalnepantla, México.

Methods:

Prospective analysis of induced astigmatism in 200 eyes operated by the same surgeon with 0.7 mm Biaxial Phacoemulsification and a thirt incision (2.4 mm no stitches) only for IOL implantation, divided in two groups; 100 cases with temporal approach and 100 with superior approach. Surface topography measures were made in all cases preoperative, two weeks postoperative and two months postoperative.Induced astigmatism was measured and compared between two groups through variance analysis. Complicated cases, preoperative keratometric measures of 48 D or higher and preoperative corneal pathology were not included.

Results:

In the group of the superior approach the mean value of corneal induced astigmatism at two months postoperative was 0.88 +/- 0.32 D, meanwhile in the group of the temporal approach the value of corneal induced astigmatism at the same period of time was 0.53 +/- 0.53. The difference was statistically significant (p < .05)

Conclusions:

When comparing the astigmatism induced by the operation based on the use of 0.7mm Biaxial Phacoemulsification and a third 2.4 mm keratome-based clear corneal incision performed only for IOL implantation, by temporal approach and superior approach, with no stitches, the temporal approach has less induction of astigmatism.

Financial Disclosure:

None