Patent ID: 8136946

Claim:
An apparatus comprising: an infinitely variable graduated horizontal control that moves a pair of lens holders slowly in front of a patients eyes equal distances but opposite directions and, independently from the horizontal control, an infinitely variable graduated vertical control that slowly moves the lens holders in front of the patients eyes equal distances but opposite directions; wherein the apparatus finds and defines, for Diplopic and AMD patients who have double vision, a location of each axis of a pair of spherical lens-blanks (of appropriate diopter) relative to a visual-axis of each respective eye of the patient, whereat each respective lens-axis is offset from the visual-axis of each respective eye by an infinitely variable graduated horizontal control that slowly moves the lens blanks equal distances but opposite directions (H-coordinates) in front of the patient's eyes and by an infinitely variable graduated vertical control that slowly moves the lens blanks equal distances but opposite directions (V-coordinates) in front of the patient's eyes that causes a required induced prism that in turn causes the patient viewing through the lens-blanks to see single vision; the H-V coordinates, combined with the diopter, become a required Rx that is converted by the user instructions to BI, BO, BU, BD notation; and a pair of spherical stationary-lenses of appropriate minus diopter are added, in the case of a patient whose eyes require such for near or far focusing, to be used in combination with the prism lenses so that the total magnification is compatible with the patient's eyes.