人工晶体的使用寿命是多久 孙宗信 北京首大眼耳鼻喉医院 скачать в хорошем качестве

人工晶体的使用寿命是多久 孙宗信 北京首大眼耳鼻喉医院

人工晶体的使用寿命是多久 孙宗信 北京首大眼耳鼻喉医院 眼睛的结构如同照相机，照相机镜头浑浊了称为白内障。因而做白内障手术就是将浑浊的晶体取出，通过超声乳化，即通过超声波把晶体打成牛奶一样的液体，叫超声乳化，将其去掉。取掉后在眼睛微创的小切口中植入一个人工晶体。人工晶体的中间有个光学区，边上有两个支架。人工晶体很小，真实的人工晶体有多大呢？人工晶体中间的圆称为光学区，其直径为5.5毫米左右。边上有两个小支架，一个支架最高点到另一个支架最高点的距离为12.5毫米左右。有人担心将人工晶体放进眼睛，高分子材料会降解从而产生一些毒素和碎屑，危害眼睛。严格地说任何东西都会降解，但是人工晶体平均能稳定70年。老年人做手术一般为60到70岁左右，开刀放入人工晶体到70年之后才开始降解，一般来说肯定是够用的。 How long is the service life of IOL The structure of the eyes is like a camera, The lens of the camera is cloudy, which is called cataract. So cataract surgery is to take out the turbid crystal, By phacoemulsification, That is, the crystal is made into milk like liquid by ultrasound, It's called phacoemulsification, Remove it. After removal, an intraocular lens was implanted into the eye through a minimally invasive incision. There is an optical region in the middle of the IOL, There are two brackets on the side. The IOL is very small, How big is a real IOL? The circle in the middle of the intraocular lens is called the optical region, Its diameter is about 5.5mm. There are two small brackets on the side, The distance from the highest point of one bracket to the highest point of the other bracket is about 12.5mm. Some people worry about putting IOL into their eyes, Polymer materials degrade to produce toxins and debris, Harmful to eyes. Strictly speaking, everything will degrade, But the average IOL is stable for 70 years. The elderly are usually 60 to 70 years old, It took 70 years for the IOL to degrade, Generally speaking, it must be enough.