ICL is an intraocular lens that is used to correct simple myopia, myopia with astigmatism, and hyperopia. Unlike the IOLs used in cataract surgery, ICLs are not used to replace the body’s own lens, but are placed between the iris and the natural lens. Because IOLs for crystalline eyes do not replace the lens, but rather act as a supplement, they act similarly to corneal contact lenses and are sometimes referred to as implantable intraocular lenses. ICL offers a new option for the correction of simple myopia, myopia with astigmatism, and farsightedness, especially in the treatment of high myopia with the unmatched superiority of corneal laser surgery. Now, patients seeking the latest approved vision correction methods, and those who are afraid of refractive surgery because they do not want to undergo permanent keratectomy with laser surgery, have a new refractive surgery option for the correction of simple myopia, myopia with astigmatism, and hyperopia. ICL features 1. Unique composition: Compared with other IOLs for crystalline eyes, ICL is made of more special materials. It is a unique organic crystal material, Collamer, which is a collagen-containing crystal material with good biocompatibility and excellent optical properties. collamer can be slowly unfolded in the eye with good predictability, so it is easy to implant. The way it conducts light is very close to the human body’s own lens, due to the fact that the properties of the material are almost identical to those of the human eye lens. 2. Foldable: ICL has better foldability compared to other crystals and requires smaller incisions during surgery. 3. High safety: The safety and effectiveness of ICL implantation has been widely proven, with more than 100,000 surgeries performed worldwide and strict clinical verification by the U.S. FDA. Unlike keratoconus surgery, ICL does not permanently change the structure of the eye, but is placed covertly in the posterior chamber of the eye and works with the person’s own lens to correct vision. 4. Minimally invasive surgery: Unlike other IOLs for crystalline eyes, ICL is foldable and can therefore be implanted through a smaller surgical incision. This small incision is much less invasive and does not require sutures and does not induce astigmatism. 5. Can be removed if necessary: ICL can be permanently placed in the eye. However, if overcorrection or undercorrection occurs, or if complications arise, or if the patient’s vision changes, the ICL can be removed or replaced by a trained eye surgeon.