| 主权项 |
1. An accommodating intraocular lens inserted into a lens capsule from which contents are removed during an ophthalmic surgery, comprising:
a lens capsule expanding device; and an optical portion which is elastically deformable, the lens capsule expanding device comprising: a front supporting portion provided in such a manner as to make contact with an inner surface of an anterior capsule so as to pass light toward a rear side; a rear supporting portion provided on a rear side of the front supporting portion in such a manner as to make contact with an inner surface of a posterior capsule while facing the front supporting portion so as to pass light from the front side toward a rear side; and a connecting portion connecting the front supporting portion and the rear supporting portion in such a manner as to have biasing force in a direction of separating the front supporting portion and the rear supporting portion from each other, wherein due to the biasing force of the connecting portion, the front supporting portion presses the inner surface of the anterior capsule and the rear supporting portion presses the inner surface of the posterior capsule, the optical portion has a front ring member and a rear ring member provided on a front surface and a rear surface in such a manner of being parallel to a circumferential portion of the optical portion, the front ring member is connected to an upper portion of the connecting portion of the lens capsule expanding device via a lateral branch and the rear ring member is connected to a lower portion of the connecting portion of the lens capsule expanding device via a lateral branch, and force is applied to the optical portion in a backward direction from the connecting portion via the front ring member and force is applied to the optical portion in a forward direction from the connecting portion via the rear ring member according to movement of the connecting portion when the front supporting portion and the rear supporting portion move in a direction away from each other with movement of the lens capsule whereby the optical portion is compressed between the front ring member and the rear ring member and the curvature of the optical portion is changed. |
