Study finds, Astigmatism Management with Astigmatism-Correct
A Study was conducted to compare refractive outcomes after phacoemulsification and toric IOL implantation using two different toric calculators for initial astigmatism assessment.

Patients over 30-year-old who underwent phacoemulsification and toric IOL implantation (AcrySof® Toric IOL) were included. IOL toricity was determined by using a calculator provided by the AcrySof Toric calculator before 2018 and Barrett Toric Calculator after 2018. Patient demographics, corneal topography, vector and preoperative and postoperative refraction were collected and analyzed at three months postoperative.

Results:
--32 eyes of 32 patients were included in the final analysis. 0.1D for surgically induced astigmatism was used.

--Group 1 included 14 eyes assessed with the original (AcrySof) toric IOL calculator, and group 2 included 18 eyes assessed with the Barrett toric IOL calculator.

--In group 1, postoperative astigmatism less than 1.00D, 0.75D, and 0.5D was achieved in 88.2%, 76.1% and 53.7% of eyes, respectively, while, in group 2, 89% eyes achieved postoperative residual astigmatism less than 0.5D and all eyes achieved postoperative residual astigmatism less than 0.75D.

--The proportion of patients with lower postoperative astigmatism was significantly higher in Group 2.

--Vector analysis with the Alpins methods also supported better outcomes in the Barrett group (0.71 D vs 0.35 D).

The Barrett Toric calculator resulted in better results in the prediction of residual astigmatism than original (AcrySof) toric calculators.

Source: https://www.dovepress.com/astigmatism-management-with-astigmatism-correcting-intraocular-lens-us-peer-reviewed-fulltext-article-OPTH
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