In the early stages after cataract surgery, the IOL is not yet stable, so it is recommended to avoid heavy lifting or sudden exertion to avoid dislocation of the IOL. Cataract surgery involves the removal of the cloudy lens and the implantation of an IOL into the eye. In the early post-operative period, especially within two weeks, when the position of the IOL is still unstable, it is advisable to avoid sudden exertion or holding heavy objects to avoid displacement or pinching of the IOL. If this happens, IOL repositioning may be necessary. Generally, three months after surgery, the position of the IOL in the eye is relatively stable, and the vision is more stable at this time. However, it is still recommended to avoid eye collision and sudden exertion as much as possible.