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Publication Exclusive: ‘Super Surface’ and ‘Super Formula’ concepts increase IOL calculation accuracy
IOL power calculations for cataract surgery have come a long way since the days of empiric regression formulae such as the SRK and SRK II. We now tend to use theoretical methods such as the Holladay, SRK/T, Hoffer Q and Haigis, among others. While we think of these formulae as two-dimensional entities, there is a benefit of plotting them in three dimensions.John Ladas, MD, PhD, had an idea: Could a graphical solution be used to solve the complex mathematical problem of IOL power calculation? The concept that he came up (Read more...)