The role of sideport incision in astigmatism change after cataract surgery

Clinical Ophthalmology
Sofia TheodoulidouMiltiadis Aspiotis

Abstract

To study the changes in corneal astigmatism after cataract surgery when the sideport incision is performed at a predetermined location away from the tunnel incision. General Hospital of Piraeus "Tzaneio", Attiki, Greece. A total of 333 eyes with corneal astigmatism ≤1.5 diopters (D) underwent cataract surgery. A three-step superotemporal clear corneal incision for the right eye and a superonasal clear corneal incision for the left eye (3.0 mm) was made, while the sideport incision was located at <90°, 90°-110°, and >110°. Keratometric data were measured with corneal topography EyeSys Vista 2000 pre- and postoperatively at the 1st and 6th month. Surgically induced astigmatism was calculated by vector analysis. We noted all cases in which a change >0.5 D in corneal astigmatic power occurred, as well as a change >20° in axis torque, despite axis direction. After multiple logistic regression analysis was conducted, cases with >110° distance between the tunnel and sideport incision had 2.22 times (P=0.021) greater likelihood for having changed >0.5 D in astigmatic power at the 1st month and 3.45 times (P=0.031) at the 6th month postoperatively, as compared with cases with a 90°-110° distance between the tunnel and sideport incision....Continue Reading

Citations

Feb 13, 2021·Clinical Ophthalmology·Samuele GigliolaGiovanni Alessio

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Software Mentioned

SPSS
EyeSys Vista 2000

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