LCL refers to posterior chamber type IOL implantation in crystalline lens eyes. At present, both LCL and femtosecond surgical technology are more mature and safer, relatively speaking, the risk of femtosecond is smaller, and you need to choose a suitable way for yourself. Clinically, both LCL and femtosecond are relatively safe, but any surgery has certain risks. Comparatively speaking, LCL is mainly an intraocular lens implantation, because it enters the inner eye, the risk is relatively high. Femtosecond, on the other hand, reduces the thickness of the cornea through a laser, which is less dangerous, but complications such as conical cornea may occur. Regardless of which type of treatment a myopic patient chooses, he or she should first undergo an examination and choose the appropriate treatment under the guidance of a doctor.