Astigmatism Research Today is a free monthly online journal that collates and summarizes the latest research about Astigmatism, including details on cornea, retina, treatment, types, signs, tests.

Astigmatism induced by oblique clear corneal incision: right vs. left eyes.

Altan-Yaycioglu R, Pelit A, Evyapan O, Akova YA

Background: To compare the induced astigmatism after phacoemulsification in the right vs. the left eye. Methods: An oblique clear corneal incision was made in a superotemporal location in the right (n = 344) and a superonasal location in the left (n = 292) eye. Retrospectively, patient characteristics, pre- and postoperative visual acuity, and induced astigmatism values were compared. Statistical analysis was performed with the Student t , &chi;2, and Mann-Whitney U tests. Results: The proportion of against-the-rule astigmatism and surgically induced astigmatism values were significantly larger in the left-eye group (p < 0.001).Interpretation: Surgically induced astigmatism occurred to a greater extent in the left eyes compared with the right, possibly because of structural differences.

Published 20 July 2007 in Can J Ophthalmol, 42(4): 557-561.
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