ICL lens implantation is an intraocular refractive surgery. The procedure creates an incision in the cornea, where the inside and outside of the eye communicate, so there is a theoretical possibility of intraocular infection. In addition, if not performed properly, there is a risk of cataracts or persistent uveitis due to contact friction between the anterior and iris, which in more severe cases can lead to corneal endothelial loss. Elevated postoperative intraocular pressure is more common in some patients. Therefore, the eye needs to be monitored closely for structural changes in the anterior segment after surgery. If serious complications arise, the lens will need to be removed or replaced. In addition, the procedure is not yet fully available and is relatively expensive. Patients may experience age-related changes in the lens in old age, requiring another, separate lens surgery in both eyes.