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Biometry, IOL power formulae improve outcomes
Accuracy of IOL power calculation can be significantly increased through the use of a low-coherence
laser interferometry device (Lenstar LS900, Haag-Streit) for optical biometry combined with a last-generation,
four-variable, "paraxial" ray-tracing formula (Olsen formula; PhacoOptics software, IOL
Innovations). The benefit is due to improved prediction of postoperative IOL position, said Thomas Olsen,
MD.