| 摘要 |
An artificial intraocular lens for surgical implantation to replace a damaged natural lens in an otherwise functional eye of a patient having a dome-shaped central disc portion (42) and haptic loops (48, 50) formed on the central portion (42), for centering the central portion (42) after implantation. The central portion (42) is composed of a dry, solid hydrophilic material capable of hydration by the natural fluid present in the eye to expand after implantation to provide an optically correct lens and in its dry state has a cross-sectional dimension substantially less than that of the natural lens. The haptic loops (48, 50) have an effective length L greater than or equal to the diameter of the capsular sac so that the lens is held in place immediately upon insertion and remains centered while the lens expands. <IMAGE> |
