With the higher astigmatism and keratometric values from the IOLMaster, in both groups, calculations from the AcrySof and TECNIS calculators resulted in higher calculated astigmatic powers than those from same calculators with autokeratometry-measured values, demonstrating good agreement. The TECNIS calculator tended to suggest a higher astigmatic power of the toric IOL than the AcrySof calculator. RESULTS: Bland-Altman plots showed good agreement between six pairwise corneal astigmatism values in both groups. Based on measured keratometric values, the astigmatic power of each toric IOL was calculated using three toric calculators. Keratometric values were measured using autokeratometry, an IOLMaster, and an iTrace, which incorporated corneal topography and ray-tracing aberrometry. MATERIALS AND METHODS: Fifty eyes with cataract and corneal astigmatism greater than 0.75 diopters were enrolled in each group (WTR and ATR). PURPOSE: To compare the astigmatic power of toric intraocular lenses (IOLs) obtained from the AcrySof, TECNIS, and iTrace toric calculator in patients with preoperative with-the-rule (WTR) or against-the-rule (ATR) corneal astigmatism. Park HJ, Lee H, Woo YJ, Kim EK, Seo KY, Kim HY, Kim TI. Comparison of the Astigmatic Power of Toric Intraocular Lenses Using Three Toric Calculators
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