An algorithm for computing astigmatic refractive errors from ocular parameters.
Calculation of total refractive astigmatism by analyzing refractive parameters of the individual components can be very tedious, especially when the principal meridians among all the components are not orthogonal. A straightforward programming algorithm for accomplishing these calculations is presented. The algorithm is applicable to any programmable device which performs trigonometric functions.
D001251:Astigmatism / Q000175:diagnosis*; D003201:Computers; D006801:Humans; D008962:Models, Theoretical; D012029:Refraction, Ocular / Q000379:methods*