Patent ID: 8608313

Claim:
An apparatus for training the visual focusing ability of a subject, the apparatus comprising: a partially cylindrical frame, the partially cylindrical frame comprising: (i) a partially circumferential surface; (ii) a first axial boundary; (iii) a first optical element assembly oriented generally along a first plane, the first optical element assembly comprising a first pair of openings to receive optical elements, a first nose notch, and a first edge, the first edge being opposite the first nose notch; and (iv) a second optical element assembly oriented generally along the first plane, the second optical element assembly comprising a second pair of openings to receive optical elements, a second nose notch, and a second edge, the second edge being opposite to the second nose notch and being adjacent to the first edge of the first optical element assembly; and a first pair of optical elements, the first pair of optical elements having a first optical characteristic; a second pair of optical elements, the second pair of optical elements having a second optical characteristic; and a handle, the handle being coupled to the partially cylindrical frame and oriented along the first axial boundary of the partially cylindrical frame such that rotating the partially cylindrical frame allows for a reduction in the amount of rotation to visually align to the subject's eyes the first optical element and the second optical element.