How is cataract surgery done? Modern cataract surgery methods mainly refer to: 1. extracapsular cataract extraction combined with IOL implantation; 2. ultrasonic cataract aspiration combined with folded IOL implantation; the former is to make a 6-9mm incision to remove the cloudy lens nucleus from the eye as a whole and then implant an IOL, this method is suitable for all cataract patients, but its incision is large, recovery is slower This method is suitable for all cataract patients, but its incision is large and recovery is slow. Cataract extracapsular extraction Ultrasonic emulsion cataract aspiration combined with folded IOL implantation The main step is to make a 1-3mm incision, extend the ultrasonic emulsion needle into the eye, break the lens nucleus in the eye and aspirate it out of the eye, and then implant a folded IOL. method is not suitable for lens nuclei that are too hard in the mature stage, because the lens nuclei are too hard and a large amount of ultrasound energy is used in the process of breaking the lens nuclei in the eye, and these ultrasound energies will damage other tissues in the eye, increasing the risk of surgery and affecting the postoperative results. Cataract ultrasonic emulsification cataract aspiration combined with folded IOL implantation