A lens system for presbyopes utilizes inter-eye disparity limits to improvevision.The system of lens may be utilized to improve binocular vision when viewingdistant,intermediate and near objects by requiring a minimal level of disparity invision betweenthe eyes wherein the level is not objectionable to the patient. This disparityin visiondepends on the lens design for each eye and upon how the lenses are fit ineach eyerelative to the distance refraction of the patient.
