Distortion by ophthalmic lenses calculated at the farpoint sphere.

  • Mikhail G. Katz
  • Published 1983 in
    American journal of optometry and physiological…


Distortion by ophthalmic lenses has generally been calculated with respect to an ideal flat image surface. This results in improper distortion values as the ideal image surface for the mobile eye is the farpoint sphere. Results of distortion calculations for lenses ranging from +20 to -24.65 D are given for point focal lenses (corrected for oblique… (More)