A surgical system corrects a surgical parameter based on a nomogram specific for a refractive laser surgery system to provide a nomogram-based corrected surgical parameter; stores the surgical parameter and the nomogram-based corrected surgical parameter as data for a patient or for one or both eyes of the patient; and compares the surgical parameter and nomogram-based corrected surgical parameter to generate a graphical representation of the surgical parameter, a target outcome parameter associated with the surgical parameter, or both, and the nomogram-based corrected surgical parameter, to generate a warning based on a comparison of the nomogram-based corrected surgical parameter to the surgical parameter or an absolute value, or both.