Cataract ultrasound emulsification combined with IOL implantation is the most popular surgical procedure in the world today. This procedure uses an ultrasound emulsifier to remove the cloudy lens through a corneal or scleral incision of about 2-3 mm, and then the IOL will be implanted in just ten minutes. The advantages of the procedure are small incision, no sutures are needed after surgery, quick healing of the incision, low chance of astigmatism after surgery, and quick recovery of vision.