| 摘要 |
In one aspect, the present invention provides a method of correcting vision, which comprises determining a residual accommodation exhibited by a natural, crystalline lens (34) of an eye (32), and selecting a multifocal intraocular lens (IOL) (20, 36), which exhibits a far-focus optical power (e.g., in a range of about -15 to about +50 Diopters (D) ) and an add power (e.g., in a range of about ID to about 4 D), for implantation in the eye while retaining the natural lens. The add power of the IOL is selected as a function of the residual accommodation such that a combination of the IOL and the natural lens provides a visual contrast greater than about 10% at a spatial frequency of about 20 cycles/degree for viewing objects at a distance greater than about 30 cm from the eye. |
