Patent ID: 7490940
Filing Date: 2009-02-17
Classification: A61B

Abstract:
1. A method for determining a correction for a patient's eye, comprising: directing light toward the patient's eye as the patient views a target through an optical test system; successively measuring aberrations in a first plurality of wavefronts reflected from the patient's eye while the patient is viewing a target through an optical test system in a first configuration, the aberrations in the first plurality of wavefronts being indicative of the vision provided to the patient by the optical test system in the first configuration; successively measuring aberrations in a second plurality of wavefronts reflected from the patient's eye while the patient is viewing the target through the optical test system in a second configuration, the aberrations in the second plurality of wavefronts being indicative of the vision provided to the patient by the optical test system in the second configuration; calculating Quality of Vision Factor (QVF) values calculated from at least some of the measurements, the QVF defined as QVF=exp−(Σ determining whether the optical test system provides better vision correction for the patient's eye in the first configuration or the second configuration, the determination based at least in part the QVF values corresponding to the first and second plurality of measured wavefronts.