| 摘要 |
Disclosed is an accommodating intraocular lens (AIOL) adapted for implantation in a posterior chamber of an eye that allows the user to see more clearly in differing light conditions. The lens comprises an optic of two optic regions configured to produce a trapezoidal phase shift that causes a linear change in the phase shift imparted to incoming light as a function of pupil radius, where the trapezoidal phase shift is a linear change between the two regions in the phase shift imparted to incoming light as a function of radius. A plurality of haptics, extend from a haptic-optic junction to at least one transverse arm adapted for contacting a capsular bag of the eye and each haptic having sufficient length and rigidity to stretch a capsular bag of the eye to contact ciliary muscles of the eye. The haptic-optic junctions vault the optic forward relative to the haptics and compression of the haptics by the ciliary muscles exerts a forward force at the optic of at least 1.5 mN and wherein the trapezoidal phase shift augments a visual effect of the forward force to produce a combined effective power change of at least 0.75 diopters such that different effective depths of focus are provided for different distances and pupil sizes as a result of changes in light conditions. |
