Plunger for an injector, and injector

An injector, comprising:

• a plunger;
• and
• a tip,
• wherein the injector is configured to inject an intraocular lens into a capsular bag of an eye,
• wherein the plunger has a deformable cushion which has an unsqueezed state and a squeezed state and, at one longitudinal end of the plunger, the plunger has a contact surface into which a recess is introduced,
• wherein in the unsqueezed state, the contact surface has an outer contour externally delimiting the contact surface and has an inner contour externally delimiting the recess,
• wherein an imaginary reference point is arranged in the recess, which is a center point of an imaginary circle arranged in a plane of the contact surface,
• wherein the plunger has at least two groups of points, which each have a design point, arranged on the outer contour, an inner contour point, arranged on the inner contour, and the reference point, and for each of the groups of points:
• a distance from the design point to the circle is a same length as a distance from the inner contour point to the reference point, the design point, the inner contour point and the reference point lie on a straight line, and the inner contour point lies between the design point and the reference point,
• wherein the distance from the inner contour point to the reference point is different for at least two of the groups of points,
• wherein the plunger is mounted in the injector such that the plunger is displaceable longitudinally in a direction of displacement and is configured to be moved, with the contact surface to the front, into the tip, and
• wherein the reference point is chosen such that, when the reference point is projected in the direction of displacement, the reference point coincides with the center of gravity of a first internal cross section of the tip, of which a normal is parallel to the direction of displacement.