Hi all,
I am trying to calculate the curvatures of the cornea and compare them with Pentacam values. I have the Zernike equation in polar coordinates (Zfit = f(r, theta)). Can anybody let me know the equations for calculating the curvatures ?.
Thanks & Regards.
Nithin
Thank you very much for your inquiry, professor. We use the empirical calculation equation as follows to calculate curvature.
"I would like to know if the spreadsheet COR-PWR-LOAD exported by the Pentacam, with values for FRONT r0.0 0°: r1.0 0°: r1.0 45°: r1.0 90°: r1.0 135°: r1.0 180°: r1.0 225°: r1.0 270°: r1.0 315°: r2.0 0°: r2.0 30°: r2.0 60°: r2.0 90°: r2.0 120°: r2.0 150°: r2.0 180°: r2.0 210°: r2.0 240°: r2.0 270°: r2.0 300°: r2.0 330°... are axial or tangential radii. If they are axial, how can I transform them into tangential?"
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