1. A method implemented by computer means, for evaluating a dynamic visual perception of an individual, comprising the steps of: a) displaying on a screen at least one moving pattern having a chosen visual complexity feature, said pattern being selected amongst a plurality of possible patterns having each a value; b) providing a human/machine interface enabling the individual to input a value to indicate the pattern that the individual sees on the screen; c) receiving through said human/machine interface the inputted value and comparing said inputted value to the value of the displayed pattern; d) repeating the preceding steps in order to count the number of successive positive comparisons at step c); and d1) if the number of successive positive comparisons exceeds a predetermined threshold, increasing said pattern visual complexity feature of a chosen amount, d2) otherwise, lowering said pattern visual complexity feature of a chosen amount; and e) repeating step d) and lowering said chosen amount each time an alternation between steps d1) and d2) is detected, until a predetermined number of alternations is detected, in order to determine a maximum visual complexity feature of patterns that the individual can identify, said maximum visual complexity feature defining a quantitative value of the dynamic visual perception of the individual.