V = visual acuity values at 5 m testing distance (the visual acuity values for 6 m testing distance are also given on the charts except for on chart 46936, where they are only given for 5 m), plastic coated. Dimensions: approx. 290 x 490 mm (W x H).
The MARS letter contrast sensitivity test is a set of three charts presenting very large letters with low visual acuity demands in a progression of weakening contrast, providing a quick and simple means of testing a person’s visual contrast sensitivity.
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