Device for measuring the critical frequency of the foveal fusion of the eye.

摘要

The device according to the invention allows measurement of the critical fusion frequency of the fovea of the eye of a person using an intermittent point light source (88) which can transmit in two distinct wavelengths corresponding to two distinct colours which can be perceived by the person. The light source (88) is substantially a point light source and it is provided with adjustment means (54, 110) for the relative positioning of the eye pieces (48, 50, 52) so as to adapt the device to the spacing of the pupils of the person. <IMAGE>