| 摘要 |
<p>A posterior-chamber intraocular implant for correcting short-sightedness in a phakic eye is disclosed. The implant includes a substantially circular optical portion (30) consisting of a front dioptric surface (40), a rear dioptric surface (42) and a haptic portion. The haptic portion includes two extensions (32, 34) joined to the edge of the optical portion, of which the ends are spaced apart by a distance greater than the diameter of a dilated pupil, and two attachment portions (52, 54). The front surface of each extension comprises a toroidal portion (44) joined to the front dioptric surface, the rear surface of each extension comprises a toroidal portion (46) engaging the lens circumference and joined to the rear dioptric surface, and a connecting portion (48), and the rear dioptric surface and the toroidal portions on the rear surfaces of the extensions define a recess (50) for freely altering the curvature of the front lens surface.</p> |
