The contraindications after cataract surgery include abusing eye drops, not following the doctor’s instructions, rubbing the eyes with force, strenuous exercise, excessive use of the eyes, drinking alcohol and so on. 1. Abuse of eye drops: Generally, the use of postoperative medication lasts for 2 to 4 weeks, gradually decreasing weekly, and must be strictly in accordance with the doctor’s orders. 2. Failure to follow the doctor’s instructions: the general follow-up time after cataract surgery is 1 day, 1 week, 1 month and 3 months after surgery, should be timely and regular follow-up, checking visual acuity, intraocular pressure and so on. 3. Rubbing the eyes: avoid rubbing the eyes after surgery, otherwise the incision will not close completely, resulting in aqueous humor outflow and lens shift. 4. Strenuous exercise: avoid strenuous exercise in the short term after surgery to prevent wound tearing caused by eye trauma. 5. Excessive eye use: avoid excessive eye use after surgery to prevent visual fatigue. 6. Alcohol consumption: avoid drinking alcohol in the short term after surgery to prevent intraocular hemorrhage. It is recommended to follow the doctor’s instructions for good postoperative care after cataract surgery to avoid affecting the recovery.