An insertion device (2) for an intraocular lens (1) comprising: a main body (12) in which the lens is placed and a pushing shaft (16) that pushes out the lens from the main body into an eye the insertion device (2) includes, between the pushing shaft (16) and the main body (12), a structure (14,43) for suppressing displacement of the pushing shaft (16) relative to the main body (12) in a direction perpendicular to an axial direction of the insertion device.
