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ORIGINAL ARTICLE
Year : 2013  |  Volume : 106  |  Issue : 2  |  Page : 66-69

Evaluation of keratometric and refractive astigmatism in patients undergoing phacoemulsification


Department of Ophthalmology, Suez Canal University, Ismailia, Egypt

Correspondence Address:
Ehab M Ghoneim
MD, Department of Ophthalmology, Suez Canal University Hospital, 5432 Ismailia
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.7123/01.JEO.0000431540.49005.c4

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Purpose

The aim of the study was to investigate the correlation between refractive and keratometric astigmatism in patients undergoing phacoemulsification.

Setting

Ophthalmology Department, Suez Canal University Hospital, Ismailia, Egypt.

Design

This study was cross-sectional in design.

Patients and methods

Thirty-one consecutive eyes that had undergone phacoemulsification with in-the-bag implantation of acrylic intraocular lens were evaluated. An autokeratorefractometer was used to determine refractive and keratometric astigmatism in eyes operated upon for cataract surgery.

Results

Regression analysis found a significant correlation between the refractive and keratometric errors of the J0 component (P<0.001, r2=0.832) and between the refractive and keratometric errors of the J45 component (P=0.038, r2=0.541).

Conclusion

In about 70% of pseudophakic patients, refractive astigmatism is solely related to keratometric astigmatism, whereas in 30% of patients with pseudophakic astigmatism other factors than the cornea may play a role. Such factors should be evaluated.



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