The invention relates to a method for determining the total refractive power of the cornea of an eye and is based on a combination of keratometric or topographic measurements using the measured values obtained from depth scans or sectional images. In the method according to the invention, the radius (Ra) of the front side of the cornea is ascertained keratometrically or topographically, the radius (Rp) of the rear side of the cornea is determined from depth scans or sectional images, and the refractive power (Ka) of the front side of the cornea, the refractive power (Kp) of the rear side of the cornea, and the total refractive power (K) of the cornea are determined. In particular, the radius (R'p) of the rear side of the cornea, said radius being ascertained from the depth scans or sectional images, is not directly used as a measured value in the calculation of the total refractive power (K) but rather only once the front/rear side ratio (c) is taken into consideration in an earlier additional step. The method according to the invention is used to determine the total refractive power of the cornea of an eye and is not just applicable to eyes with normal vision but in particular also to astigmatic eyes.
METHOD FOR DETERMINING THE TOTAL REFRACTIVE POWER OF THE CORNEA OF AN EYE