How much does it cost for Beijing Tongren Hospital to perform surgery to treat "cataract"

My grandfather had cataract surgery last year, and the chief doctor told them. Add them together 1 1200 yuan, and the imported crystals used are only 2000 yuan each. (Domestic products won't be so expensive, about every 600 yuan) Medical insurance has been reimbursed for more than 4,600 yuan, but colleagues said it better at the meeting. He hasn't found any sequelae or recurrence! Do it early, or it will be delayed if it is late!