| 摘要 |
An intra-ocular implantable device and a method of surgically implanting such device in which upper and lower haptic loops (22, 24) are attached to a lens (20) on opposite sides thereof for contacting the ciliary sulcus (or capsular bag) to position the lens in the posterior chamber. The lens (20) has a dimension in one transverse direction across the lens greater than its dimension in a perpendicular direction. The lower loop (24) has a stiffness greater than the upper loop (22) and the lens (20) has a vertical dimension greater than its horizontal dimension to ensure proper positioning of the lens. The lens (20) has a rear convex surface for facilitating discission after implantation and optical advantages. Upper and lower bores (30, 32) in the front surface of the lens extend at an angle to the vertical of, for example, 15<o> to 20<o> to permit fixation by a fine spatular for manipulation of the device during implantation. The edges of the lens between the loops include straight line portions (26, 28) for guiding the device during insertion and requiring minimum incision. |
