Patent ID: 8857991

Claim:
An article of manufacture comprising a microprocessor and a computer readable medium comprising computer readable program code disposed therein for determining a torsional component of an ocular motility disease in a patient, the computer readable program code comprising a series of computer readable program steps to effect: projecting a first asymmetric symbol comprising a first color onto a vertical surface; projecting, for each value of (i), an (i)th asymmetric symbol on the vertical surface, wherein the (i)th fixation point is one of (N) total fixation points, wherein the (i)th asymmetric symbol and the first asymmetric symbol are the same, wherein the (i)th asymmetric symbol is of a second color, wherein the first and second color differ, wherein (N) is greater than 1, and wherein (i) is greater than or equal to 1 and less than or equal to (N); recording an (i)th perceived location and an (i)th perceived orientation upon receiving a signal that the first asymmetric symbol is aligned with the (i)th asymmetric symbol; and transforming the (i)th perceived location and the (i)th perceived orientation into an ocular motor functioning map illustrating the torsional component of an ocular motility disease.