[Binocular function clarified].

Normal binocular function is defined as the bifoveal connection of the central and peripheral structures of the visual system. Binocular function in strabismus is defined as connections, more or less strong and more or less labile, of the fovea of the fixating eye with the "pseudo-fovea" of the deviating eye including all central and peripheral structures, and this connection represents, in fact, a progress of adaptation of all parameters to the new conditions of vision.