| 摘要 |
<p>A multifocal contact lens which can provide a clear view during actual use though it is impossible to neglect important phenomena such as lens eccentricity and changes in pupil diameter. Specifically a contact lens (1) with a lens curve (2) composed of near-sight curved surfaces and far-sight curved surfaces formed alternately and arranged concentrically with respect to an optical axis (10), characterized in that an optical region (7) of the lens curve (2) has, as the near-sight curved surfaces and the far-sight curved surfaces, only a first near-sight curved surface (N1) including the optical axis, a first far-sight curved surface (F1) located outside the first near-sight curved surface, a second near-sight curved surface (N2) located outside the first far-sight curved surface, and a second far-sight curved surface located outside the second near-sight curved surface.</p> |
