1. In a wavefront aberrometer system, a method comprising: obtaining one or more wavefront aberrometer images that are indicative of a patient's ocular aberrations; determining a plurality of characteristics of the one or more wavefront aberrometer images; determining one or more objective quality metrics for the one or more wavefront aberrometer images, the one or more objective quality metrics being based on an aggregate of the plurality of characteristics of the one or more wavefront aberrometer images; selecting at least a portion of the one or more wavefront aberrometer images based on the one or more objective quality metrics; and determining one or more ocular aberration measurements using the selected portion of the one or more wavefront aberrometer images.