Pantanelli SM, et al. - Researchers conducted the study for comparing predictability of postoperative refractive astigmatism (RA) using the Emmetropic Verifying Optical (EVO) Toric Formula v2.0 to one that accounts only for anterior corneal astigmatism. It was a secondary analysis of de-identified data from a prospective multi-center clinical trial that was designed to assess the safety and efficacy of a one-piece acrylic toric intraocular lens (enVista Toric MX60T, Bausch & Lomb, Bridgewater, NJ). The calculator comparison was based on 109 eyes, in which 97 (89%) were implanted with a toric IOL with an effective astigmatism power of 1.4 D or less. In terms of predictions for eyes with low astigmatism, the EVO Toric Formula v2.0 out-performed the legacy calculator.