Generally, patients are discharged on the same day of cataract surgery or the day after surgery. If the patient’s eye surgery is more complicated, or if there are complications after cataract surgery, the patient may need to stay in the hospital for a relatively longer period of time, which is uncertain. Cataract due to eye trauma, surgical operation is relatively more difficult, may occur during the operation of unpredictable risks, such as suspensory ligament rupture, posterior capsule rupture and other cases, resulting in increased trauma of the operation, which in turn led to the emergence of postoperative inflammatory reaction is more serious, and need to be hospitalized for observation, the exact number of days, depending on the actual situation. After cataract surgery, the residual sodium hyaluronate may block the angle of the atrium, IOL displacement and other reasons lead to high intraocular pressure after surgery, which requires timely measures to reduce intraocular pressure and hospitalization for observation. If there are complications of cataract, the exact time of discharge after surgery is uncertain, and patients can be discharged when their condition stabilizes.