Provided is an intraocular lens insertion device capable of stably inserting an intraocular lens by reducing the burden on the eye tissue. The intraocular lens insertion device presses the substantially tubular insertion member to be inserted into the eye, the opening provided at the tip of the insertion member for ejecting the intraocular lens into the eye, and the intraocular lens. It has an intraocular lens extrusion member that moves the inside of the insertion member and ejects the intraocular lens from the opening into the eye, and the opening direction of the opening is inclined with respect to the extension direction of the insertion member. On the rear end side of the insertion member of the opening, a recess having a predetermined depth extending in the stretching direction is provided on the outer peripheral surface of the insertion member, and the recess is provided when the insertion member is inserted into the eye and an intraocular lens. The opening is expanded or contracted by elastic deformation when the lens moves in the insertion member.眼組織に対する負担を軽減して安定した眼内レンズの挿入を行うことができる眼内レンズ挿入器具を提供する。眼内レンズ挿入器具を、眼内に挿入される略筒形状の挿入部材と、挿入部材の先端に設けられた、眼内レンズを眼内に射出するための開口部と、眼内レンズを押圧して挿入部材内を移動させ、眼内レンズを開口部から眼内に射出させる眼内レンズ押出部材とを有し、開口部の開口方向は、挿入部材の延伸方向に対して傾斜しており、開口部の挿入部材後端側において、延伸方向に延伸する所定深さの凹部が挿入部材の外周面に設けられており、凹部は、挿入部材が眼内に挿入されるときおよび眼内レンズが挿入部材内を移動するときに弾性変形により開口部を拡縮させる構成とする。
