![]() Herein, we seek to compile a list of formulas for use in surgery naïve eyes (Table1), those with clinically significant astigmatism in which a toric IOL is anticipated (Table 2), and those with a history of corneal refractive surgery (Table 3). Substantial progress has been made since Fyodorov introduced the classical vergence formula and a myriad of methods have since been developed to handle unique populations of patients. ![]() Achieving this requires that the surgeon choose an appropriate IOL power calculation formula, which is not a trivial task. ![]() 1.3 Table 3: Post-Corneal Refractive Surgery IOL Power Calculation FormulasĪn increasingly important objective of cataract surgery is the minimization of refractive error.1.1 Table 1: Spherical IOL Power Formulas.
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