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Older generation non-LVC formulas show marked improvement upon using TK values vs K, while multivariable non-LVC formulas did not consistently improve.
The study, “Comparison of Keratometry vs. Total Keratometry with Multivariable Intraocular Lens Calculation Formulas in Post-Myopic Laser Vision Correction Eyes," presented by Jacob Rogers in collaboration with the Dean McGee Eye Institute, is a retrospective review of 130 eyes with previous M-LVC that were measured with SS-OCT biometer for K and TK prior to cataract surgery between 2019-2021.
"At this time, despite the potential advantages of TK measurements to incorporate posterior coral measurements, we recommend that surgeons utilize formulas customized for post-LVC eyes with traditional K values." - Jacob Rogers
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