An optometry device for testing an individual's eye comprises:- a casing (2);- an imaging module (10) located in the casing and adapted to produce a light beam (B) directed to the individual's eye; and- a refraction module (30) adapted to provide a variable optical correction to the individual's eye looking therethrough into the casing.The optometry device comprises an illumination system (60) adapted to produce a variable ambient light level inside the casing.