In the Pentacam® IOL Calculator various formulas does consider the posterior cornea for toric IOL calculation. Examples are the Savini toric calculator specifically developed using Total Corneal Refractive power Ks, PhacoOptics which is a ray-traced formula and also the Barret formula predicting posterior astigmatism.
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The OCULUS QM system is certified in accordance with ISO 13485 and (EU) 2017/745 (MDR).
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