In one aspect, a trifocal ophthalmic lens is disclosed that includes an
optic having a surface that comprises at least one trifocal diffractive
pattern and at least one bifocal diffractive pattern such that the
bifocal pattern provides near and far vision and the trifocal pattern
generates near, far, and intermediate vision. For example, the trifocal
pattern can provide near, far, and intermediate foci such that the near
and far foci are substantially coincident, respectively, with a near and
a far focus of the bifocal pattern. In this manner, the trifocal and
bifocal patterns collectively provide near, intermediate, and far foci
(or focal regions) corresponding, respectively, to the near, intermediate
and far vision.