| abstract |
A lens for eye, such as a contact lens or an intraocular implant, of novel structure thatnwhile ensuring excellent optical properties, has a lens configuration of satisfactorilynsmall thickness and can realize a variety of lens power. This lens has such a characteristicnstructure that at least one pair of diffraction gratings (24,24) are providednin the internal part of the lens for eye (10). |