A delivery device (2) for delivering an IOL (100) is described. IOL (100) comprises optic portion (102) and haptics (104) positioned within the delivery- device in an unstressed, or expanded, configuration. Delivery device (2) includes inserter body (4), pull block (6), and belts (8). The pull block is connected to the belts on the belt portions that are on the exterior surfaces and bottom surface of the inserter body, but is not connected to the belts on the inside of the inserter body. Movement of the pull block in either of the direction of arrows D and P moves the portion of the belts on the inside of the inserter body to move in the direction generally opposite the direction of movement of the pull block. For example, when pull block (6) is moved in the proximal, or P direction, the belt portions on the interior of the body move generally in the D direction. The belts act generally as conveyor belts to move the IOL the pull block is actuated.Linvention concerne des systèmes de livraison pour livrer un dispositif ophtalmique dans lœil. Dans certains modes de réalisation, les dispositifs de livraison sont adaptés pour livrer une lentille intraoculaire dans lœil.