Modeling Chromatic Pupillary Responses in Healthy People

We propose a model to determinate pupillary changes due to chromatic stimulus. The pupillary diameters (PD) from 44 subjects with normal vision of colors were measured. These PD were elicited by 26 different chromatic stimuli (from 400 to 650 nm). The proposed model establishes the pupillary behavior for different colors. To determinate this model, we consider the characteristics of the subject (age and gender), stimulus (luminance and wavelength) as the diameter of their pupil (for white stimulus). With our approach the maximum coefficient of correlation obtained was of 1.0 in 90% of the cases analyzed (PD measured and calculated). This proposed model is the first all over the world.