To describe a way to evaluate the peak velocity of contraction (PVC) and Time of peak velocity contraction (TPVC), of pupillary responses at two isoluminant chromatic stimuli (Blue and Red) with a luminance level of 9 cd/m2 in patients with multifocal intraocular lens (MIOL) implant by means of high speed video-oculography (HSV) and digital eye image processing. In this preliminary study (PS) are studied pupillary responses from patients with hypertension (HTA) and patients without systemic sickness (HS), using t-student analysis. Results from t-student test, of this PS represent that peak velocity contraction was presented faster in subjects with hypertension in both colors.