Abstract: A multifocal diffractive lens is provided which achieves efficient use of light. The multifocal diffractive lens 100 includes a diffraction grating 1c. Negative-order light L2 produces a focal point f2 for far vision and 0-order light L1 produces a focal point f1 nearer to that for far vision. The number of focal points is two or more. The focal position fc for far vision in polychromatic performance evaluation is located nearer to the multifocal diffractive lens than the focal position fs for far vision in monochromatic performance evaluation.

Abstract: An insertion device for an intraocular lens is disclosed which capable of pushing out the lens into an eye by a pushing shaft directly from a state in which the lens is stored. The device comprises a lens holding portion, and a pushing shaft moving the lens from the lens holding portion. The lens holding portion includes first and second holding portions allowed to contact surfaces opposite to each other of a marginal portion of the lens. The first holding portion is allowed to contact regions rearward from positions having a first circumferential angle of larger than 45° and smaller than 70° to both circumferential sides from a 0° position in the marginal portion. The second holding portion is allowed to contact regions rearward from positions having a second circumferential angle larger than the first circumferential angle in the marginal portion.