Cataract surgery is not recommended for elderly people with incomplete eye closure, so as not to increase the risk of intraocular infection, dry eye, corneal lesions and other complications. If patients with incomplete eye closure are not treated in time, and cataract surgery is performed at this time, the risk of bacterial infection of corneal wounds can be increased due to prolonged exposure of the cornea to the air and the lack of protective effect of eyelid closure after the surgery, and patients may experience discomfort such as conjunctival congestion, eye swelling and pain, photophobia, and flow. Patients with incomplete eye closure, because of long-term exposure of the eye surface, resulting in reduced tear film stability, if cataract surgery will further damage the blood vessels of the eye surface, can exacerbate dry eye symptoms, such as dry eyes, foreign body sensation and other uncomfortable symptoms. Long-term exposure of the patient’s ocular surface to the air is more damaging to the corneal epithelium, and the patient may develop keratitis and corneal ulcers, which can aggravate corneal damage and affect the patient’s visual function if cataract surgery is performed. Therefore, it is not recommended to do cataract surgery directly for elderly people with incomplete eye closure. They should first treat the incomplete eyelid closure through surgery before treating cataract, so as not to increase the risk of postoperative complications.