An artificial lens is an advanced product, an artificial optical lens that can be implanted in the eye. Eye lens implantation is a surgical method to replace human’s own lens with an artificial lens to improve vision by changing the lens that has originally become diseased and cannot use its refractive function normally, and can be used to treat myopia, hyperopia, cataract and other lens diseases. I. Benefits of lens implantation: 1. Restoration of vision: The implanted IOL can work according to the physiological function of the human lens, improving the vision loss originally caused by lens lesions, especially super high myopia, so that vision can be restored; for other lesions, such as macular degeneration, the IOL can also restore normal vision; 2. Quick surgery: The surgical incision is small, only 2.2mm, in 3. Completely reversible: the surgery has no damage to the cornea and other tissues, and the crystal can be adjusted or removed anytime there is a problem; 4. High comfort: the crystal does not need to be removed and put in frequently after implantation, so the comfort level is high and does not affect daily work and life. 2. Disadvantages of crystal implantation surgery: 1. Adverse reactions: The common post-operative adverse reactions of IOL surgery include crystal dislocation, semi-dislocation, post-operative infection, complications of glaucoma and cataract, etc.; 2. Complications: During the surgery, the corneal endothelium may be damaged, affecting the normal physiological function of the cornea; if the iris is damaged, it will lead to iridocyclitis, etc. With the development of modern medicine, there are more and more types of surgery and diseases that can be treated. When considering whether to take a certain treatment, you should listen to the professional advice of a specialist and make a comprehensive judgment of the pros and cons that may be caused by the surgery before making a choice.