Glare is a response to light that impedes or impairs task performance. Contour brightness responses depend on a linear retinal receptor density and eye tremors across a contrasting pattern. These include responses that difference, sharpen, band, flicker, separate, or blur the detail we see... "disability glare." Area brightness responses depend on area densities which include photic reflexes, phototropic eyemovements, flare, to afterimages... "discomfort glare." Psychophysics relates each perceptual response with a set of physical stimuli. Correlations are modeled in lemmas as sequential...