Figure 2From: A visual test based on a freeware software for quantifying and displaying night-vision disturbances: study in subjects after alcohol consumptionGraphic results for the Halo test. Graphic results of the Halo test for a subject with a BrAC of 0.43 mg/l, monocularly (right [R] and left [L] eye) and binocularly, for the different experimental conditions. ρ is the VDI and φ the pupil diameter.Back to article page