The advantages of phacoemulsification are: ① the incision is small, the traditional incision is 12mm, and the incision is less than 3mm ... ② The postoperative reaction is slight, the incision heals quickly, and the vision recovery is faster and better. ③ Postoperative astigmatism is small, which is easier to correct or control. ④ The operation has better controllability, safety and stability. ⑤ The operation time is short, generally only 15-30 minutes. ⑥ You don't need to be hospitalized, and you can go home 1 hour after operation. ⑦ You don't have to wait for the cataract to mature before surgery.