A method for determining spherical aberration parameters for a corneal laser treatment to treat presbyopia may include performing pupillometry to measure various actual pupil diameters of a patient from a photopic diameter to a mesopic diameter. An actual pupil center of the patient may also be measured. The measured pupil diameters and the pupil center may be used to customize the spherical aberration parameters to the eye of the patient for improved ocular results after treatment.一種確定用於角膜雷射治療的球面像差參數以便治療遠視之方法可以包括進行瞳孔測量以便測量患者的從明視覺直徑到中間視覺直徑之各種不同實際瞳孔直徑。還可以測量患者之實際瞳孔中心。所測量之瞳孔直徑和瞳孔中心可以用於為患者之眼睛定製球面像差參數，以用於改善治療後之視覺結果。
