PROBLEM TO BE SOLVED: To solve such a problem that, when an intraocular lens is pushed out by a push member, a tip end of a support part sometimes is caught by an edge of an optical part or the like and does not smoothly put on a surface of an optical part.SOLUTION: An intraocular lens insertion instrument 1 includes an optical part 8 and a pair of support part 9a and 9b extending therefrom and inserts an intraocular lens 7 into an eye. The intraocular lens insertion instrument includes: an insertion instrument body 2 including a lens installation part 6 on which the intraocular lens 7 is installed； a holding part 14 that holds a tip end of the front support part 9a disposed in front of the lens installation part 6, out of the pair of support parts 9a and 9b； and guide mechanisms (11c and 14a) that, when the intraocular lens 7 is pushed out by the push member 5 so as to downward deform the optical part 8 relative to the front support part 9a held by the holding part 14, guide the optical part 8 so as to pass through under the holding part 14.SELECTED DRAWING: Figure 3【課題】押出部材で眼内レンズを押し出すときに、支持部の先端部が光学部の縁に引っ掛かるなどして、支持部の先端部が光学部の面上にスムーズに乗らないことがあった。【解決手段】光学部８とそこから延在する一対の支持部９ａ，９ｂとを有する眼内レンズ７を眼内に挿入する眼内レンズ挿入器具１であって、眼内レンズ７が設置されるレンズ設置部６が設けられた挿入器具本体２と、一対の支持部９ａ，９ｂのうちレンズ設置部６の前方に配置される前方支持部９ａの先端部を保持する保持部１４と、この保持部１４に保持された前方支持部９ａに対して光学部８を相対的に下方に変位させるべく、押出部材５によって眼内レンズ７を押し出す際に、保持部１４の下を通過するように光学部８をガイドするガイド機構（１１ｃ、１４ａ）と、を備える。【選択図】図３
