Inclusion Criteria:  Diagnose age-related cataract; Plan to perform phacoemulsification of cataract with intraocular lens implantation; Willing to cooperate with the re-examination of 1 day, 1 week, and 1 month after surgery; Able to understand and independently fill in the informed consent form and postoperative follow-up plan.  Exclusion Criteria:  Cataract caused by other reasons; Fundus diseases such as severe diabetic retinopathy, high myopic retinopathy or macular degeneration; Corneal diseases, corneal endothelial cells <1800/mm2; Small palpebral fissure; Those with a history of glaucoma, uveitis, eye trauma or eye surgery; Those who cannot cooperate with the inspection and have not completed the one-month follow-up