Abstract: The eye testing device for testing visual acuity includes a light-colored, opaque front chart having a plurality of cut-out openings in the shape of letters, numerals, or similar characters and a black box located behind the chart for absorbing ambient light transmitted through the cut-out openings and thereby providing a 100% contrast for the indicia or characters defined by the cut-out openings. In one embodiment, the device includes a plurality of panels or cards which vary in color intensity, e.g., from white to pitch black. Individual panels can be moved adjacent the back side of the chart to vary the degree of contrast perceived at the cut-out openings.