Patent ID: 8182088

Claim:
A method of selecting an intraocular lens or an optical power thereof, comprising: providing an eye comprising a cornea and a retina; determining a value of an axial length of an eye, the axial length being equal to a distance from the apex of the cornea to a surface of the retina; calculating, based on a mathematical relationship, a distance from the apex of the cornea to an apex or plane of the intraocular lens after an ocular surgical procedure; calculating an optical power of the intraocular lens suitable for providing a predetermined refractive outcome; wherein the mathematical relationship comprises a dependent variable that varies with a value of an independent variable, the independent variable having a base value corresponding to the determined axial length; wherein the mathematical relationship has a sensitivity of less than or equal to 0.5%, the sensitivity being defined as a percent variation in the dependent variable for a 1% change of the independent variable from the base value.