Apparatus, system, and method for intraocular lens power calculation using a regression formula incorporating corneal spherical aberration

摘要

An intraocular lens, and a system and method of providing an intraocular lens, having at least one characteristic of the intraocular lens customized in accordance with a modified regression that includes a modification for corneal spherical aberration. The lens, system and method may indicate measuring at least one biometric parameter of an eye at a desired light level, determining a desired postoperative condition of the eye, obtaining a corneal spherical aberration of the eye, applying at least one empirically derived regression calculation, and predictively estimating, in accordance with an output of the at least one empirically derived regression calculation, the at least one characteristic of the intraocular lens to obtain the desired postoperative condition. The empirically derived regression calculation includes at least a product of the corneal spherical aberration with an empirically derived corneal spherical aberration constant, and a mathematical indication of the at least one biometric parameter or one of the paraxial regression formulas commonly used in clinical practice to calculate IOL power in normal patients.

主权项

1. A system for predicting optical power for an intraocular lens to obtain a desired postoperative condition, comprising:
a first device configured to measure at least one biometric parameter of a native eye; a second device configured to obtain a corneal spherical aberration of the native eye; at least one computing processor configured to apply a modified regression formula to the at least one biometric parameter and the corneal spherical aberration to determine an optical power; and an output device configured to output the optical power, wherein the modified regression formula is of the form:
optical power=Regression+constant0*(corneal spherical aberration)oroptical power=constant1*(biometric parameter)+constant0*(corneal spherical aberration) wherein constant1 and constant0 comprise an empirically derived factor across other eyes, and wherein the Regression comprises a predicted optical power derived from a classical regression formula.