Determining a target optical zone for abalation based on the stiles-crawford effect

摘要

The optimal optical zone for a patient is determined based upon the Stiles-Crawford effect and patient-specific scotopic pupil parameters. This invention is especially useful in refractive surgery where the chosen optical zone is crucial and affects both the depth and volume of the abalation. This optimal optical zone may be used in the creation of corrective lenses and other ocular surgery in addition to refractive surgery. Provided with the optimal optical zone, a refractive surgeon may better choose the sugical parameters for the treatment. Current methods consist of choosing a default value for all patients or only choosing the scotopic pupil diameter or contour, either of wich may not be optimal and may lead to a deeper or bigger treatment.