Disclosed is a method of designing an ophthalmic lens including the steps
of: (a) determining a preliminary lens shape by preliminary determining a
shape of the ophthalmic lens; and (b) varying the preliminary lens shape
so as to adjust a position of an image surface at which MTF value is
maximized, such that the position of the image surface matches a desired
focal length of said ophthalmic lens. A resulting ophthalmic lens
constructed according to this method is also disclosed.