| 摘要 |
<p>The invention provides an intraocular lens (11) comprising: an optic (13) having a width and a length perpendicular to the width; and at least one elongated, resilient fixation member (15, 17) extending from the optic (13), said fixation member (14, 17) terminating in a free distal end (28, 28a), and having a proximal segment (23, 23a) joined to said optic (13) and an intermediate segment (27, 27a) joining the proximal segment (23, 23a) to a distal segment (25, 25a); characterised in that the fixation member (15, 17) does not extend beyond the width of the optic (13) and said distal segment (25, 25a) and said intermediate segment (27, 27a) of the fixation member (15, 17) are of substantially uniform cross-sectional area; said distal segment (25, 25a) has a radial outer surface which has a radius of curvature no greater than about 5.5 millimeters; the optic (13) has an optical axis and the distance from the optical axis to said distal end (28, 28a) being no more than about 6.75 millimeters; and said fixation member (15, 17) is resiliently deformable radially inwardly to an implanted shape to provide an arc in which said radial outer surface has a radius of curvature of between about 4.75 and 5.25 millimeters. <IMAGE></p> |
