1. What is the role of the lens in the human eye?
The lens is equivalent to the lens of a camera. If there is no artificial lens, it is the same as a camera that cannot take photos. Secondly, there are different degrees of lens. When you go to the hospital for cataract surgery, you must measure the degree, which determines whether your eyes are farsighted or nearsighted after the surgery, but many of us can be sighted after the surgery.
2. After cataract surgery, is it necessary to implant an artificial lens?
Combined with the role of the lens mentioned above, we can say that basically everyone should have an IOL implanted after cataract surgery. Even some negative IOLs can be implanted to correct high myopia, and after implantation, highly myopic eyes will be free of this myopia after surgery. The development of high myopia is caused by the eye axis becoming longer and longer, resulting in myopia, and consequently, myopia will also cause a nuclear cataract, and after cataract surgery, we can not only remove the cataract, but also neutralize part of the myopia through the degree of the IOL, which is a twofer, but the eye itself cannot be changed. For example, he was 2000 degrees of myopia, can be changed to 200 degrees, so as not to change his lifestyle habits.
3, some users ask whether the more expensive artificial lens is the better?
There are many artificial lenses, not the more expensive the better, not all artificial lenses can solve every person’s problem, some artificial lenses for one group, some artificial lenses for another group, not the more expensive the better, in the hospital doctors according to the different circumstances of patients to help choose the right artificial lens, otherwise, may also spend more money, not get better results.
4, here we give an example, for example, a 60-year-old man suffering from cataract, if he is going to have surgery, then which kind of lens is better for him?
First of all, it depends on what kind of specific requirements he has. An artificial lens is like a plexiglass, but it is softer and can be folded up and placed inside the eye. Usually when you do ultrasound emulsion surgery, which is a small incision, we shouldn’t do a rigid lens, we usually use a folded lens. I would suggest that if in the postoperative period he is not looking too much closer, he can use a monofocal lens, a 1000 to 2000 piece lens, to look normal at a distance and wear a focal lens closer. The implantation of multifocal lens, adjustable lens is to not wear eyes, but some people have astigmatism, and astigmatism is much to be corrected with glasses. This will not achieve the effect.
5.Is it good to implant multifocal lens for small children with congenital cataract?
The development of children is like this: they are born in a farsighted state, and as they grow older, they will develop from farsightedness to orthophoria, and if they develop abnormally, they will become myopic. When we implant the IOL, we often leave a reserve for the child to recover slowly to a normal level. If these children are given a multifocal lens, they will not easily tolerate it.