A cassette (11) consists of a cassette body (13) with a space (19) for receiving an intraocular lens (IOL) (12) and a lid (23) for closing the cassette body. The cassette body (13) has openings (17a, 17b) on opposing side walls, wherein an injector piston (20) can penetrate through the opening (17b) and displace an IOL (12), which is received in the receiving space (19), out of the receiving space through the opening (17a). The cassette lid (23) seals the cassette body (13) hermetically from the environment. Coupling means, which allow the cassette body (13), which is closed by the lid, to be fastened to an injector (31), are provided on the cassette body (13). The cassette (11) can be inserted into the aperture (39) of an injector (31) in the closed state. For injecting the lens (12), which is received in the receiving space (19), the cassette (11) can be made to pivot into an injection position.