| 摘要 |
The purpose of the present invention is to provide a pupil expander capable of being safely arranged without damaging the iris and capable of maintaining a sufficiently expanded pupil state, during ophthalmologic surgery such as cataract surgery. This pupil expander (1) is used for maintaining a pupil (P) in an expanded state during cataract surgery and comprises: four arm sections (10) serially arranged so as to form a ring shape; and coupling sections (20) comprising plastic materials that couple end sections of each adjacent arm section (10). The end sections of adjacent arm sections (10) are coupled to each other by the coupling sections (20) comprising plastic material and, as a result, the overall shape of the pupil expander (1) changes inside the eye on the basis of deformation of the coupling sections (20) and the overall shape of the pupil expander (1) is maintained after said deformation. As a result, the pupil expander can be safely arranged without damaging the iris (I) and a sufficiently expanded state of the pupil (P) can be maintained. |
