Cataract surgery also carries the risk of sequelae, such as postoperative dry eye, corneal endothelial dysfunction, endophthalmitis, and so on. Cataract is a common disease in ophthalmology, which usually needs to be treated by surgery. Cataract surgery technology is relatively mature and the risk is relatively small, but there is still a risk of postoperative sequelae. Dry eye is a common sequela after cataract surgery, which is related to the impaired function of corneal sensory nerve fibers at the site of the surgical incision, leading to a decrease in reflex tear secretion in the eye. Corneal endothelial dysfunction is one of the more serious sequelae after cataract surgery and is usually caused by apoptosis and necrosis of corneal endothelial cells that are unable to withstand the stimulus of surgery. Endophthalmitis is also one of the more serious sequelae after cataract surgery, which may be caused by the internal infection of the eyeball due to the lack of strict sterilization during the surgery or the patient’s lack of attention to eye hygiene after the surgery. It is recommended that patients go to the ophthalmology department of a regular hospital for detailed consultation, follow the doctor’s instructions for treatment, and consult the doctor promptly if they feel unwell after surgery.