An artificial lens is a special lens made of synthetic materials used to replace its own lens, and its components include silicone, polymethyl methacrylate, and hydrogel. The shape and function of an IOL is similar to the lens of the human eye, and it is light in weight, has good optical properties, and is non-antigenic, inflammatory, carcinogenic, and biodegradable. After cataract surgery, the cloudy lens is removed and an IOL is implanted in the eye to replace the original lens so that external objects can be focused and imaged on the retina and the surrounding scenery can be seen clearly.
Folding IOLs allow the optical part of the IOL to be folded so that the IOL can be implanted through an incision half as small as that of a regular IOL, resulting in faster recovery and less corneal astigmatism after surgery. Folding IOLs are expensive materials, but after implantation, the patient’s visual function is comparable to that of a regular IOL of good quality, so the patient can choose according to his or her situation.