Cataract surgery does not have to wait for "cooked" to do it again July 16, 2018 Source: China Science News Author: Zhang Siwei "The cataract surgery should be done sooner or later, and benefit early." Not long ago, at the Health Hall held by Xinhuanet, Guo Libin, deputy director of ophthalmology at Beijing Tsinghua Chang Gung Hospital, pointed out that surgery is the only way to cure cataracts. Don't wait until you are "cooked" and go to surgery. Conversely, "long-formed cataracts" can lead to the inability to perform phacoemulsification, increasing the difficulty and risk of surgery and affecting postoperative visual recovery. At present, cataract is the world's first blind eye disease. The data show that the incidence of cataract in China's 60 to 89-year-old population is about 80%, and the incidence of cataract in people over 90 years old is as high as 90%. "It is necessary to remind that any drug can not treat or prevent the occurrence of cataract, and can only delay the progress of cataract." Guo Libin told the Chinese Journal of Science and Technology that cataract surgery is not a simple re-operation, in the treatment of cataract. The doctor can solve other visual problems of the patient, such as hyperopia, myopia, astigmatism, presbyopia, and the like. Therefore, cataract surgery can be referred to as the process of reconstructing vision. Vision may suddenly become better The eyes are the windows of the soul, but as the age increases, the human body functions gradually, and the function of the eyes will gradually decrease. In addition, genetic, local nutritional disorders, immune and metabolic abnormalities, trauma, poisoning, radiation and other factors may be Causes the metabolism of the lens, causing the lens protein to denature and turbidity, thereby forming a cataract. Usually cataract patients are often accompanied by vision loss, refractive power enhancement, monocular double vision or multi-vision, rainbow vision, glare, halo, photophobia and other symptoms. "Some patients with cataracts will have a brief period of vision improvement." Guo Libin explained that during a certain period of cataract development, the thickness and density of the lens in the eyeball will increase, and the refractive power of the lens will increase at this time. After the patient has a cataract, the near vision will get better, even without wearing reading glasses. "However, don't be happy because myopia is getting better. This is a transient phenomenon. With the development of cataracts, these benefits will gradually disappear." "Some patients can see the effect of the rainbow when they look at things. This is not a special function." Guo Libin said that the early cataract crystal contains more water, and the light passes through the crystal, which will be refracted. This is the same principle as the rainbow after rain. Looking at the appearance of the object will have a rainbow phenomenon, called rainbow vision, is also a major manifestation of cataract. In addition, for cataract patients, the most painful may be glare, halo and other symptoms. "This part of the patient sees things with the effect of a special effect aperture. When these light enters the brain, it will destroy the past habits of the brain. The process of adapting to it will make the brain extremely tired. Especially under strong light, the patient will be particularly painful. I can't help but blink my eyes or avoid the light, often wearing sunglasses." Multifunctional intraocular lens assist From early needle-splitting to later phacoemulsification, cataract surgery has undergone a long history of evolution and has become a clinically mature operation. Guo Libin told reporters that in fact, cataract surgery can be divided into two minor operations, the first step is to remove the cataract by surgery, and the second step is the implantation of intraocular lens. "After removing the cataract, the patient still can't see things, just like the camera doesn't have a lens. You have to give it a 'lens' to solve this problem." Guo Libin said that in the early days, vision correction after cataract surgery was done by wearing glasses. To solve the problem, the patient wears a particularly thick convex lens, which is very cumbersome and painful. But with the advent of intraocular lenses, thousands of cataract patients have achieved good vision through this effective surgical approach. In recent years, the artificial crystal has a new development in function, not only a "lens", but also has the function of focusing, and even the artificial crystal with 3D function is also under development. Myopia patients with cataract can solve the problem of myopia through cataract surgery, which is to integrate the degree of glasses into the artificial lens. In addition, problems such as hyperopia, astigmatism, and spherical aberration after cataract surgery can also be corrected by various functional intraocular lenses. "Currently, cataract surgery has been developed from rehearsal surgery to refractive surgery, through the reconstruction of the patient's visual function, to solve a variety of visual problems, improve the patient's visual quality." Guo Libin pointed out that cataract is almost not misdiagnosed, the current phacoemulsification combined with cataract IOL implantation has the characteristics of small damage, short time, quick recovery and good effect, and it has been very popular in China. "If the object is blurred, I always feel the fog in front of me, as if living in a haze, I must go to a professional ophthalmology clinic." Guo Libin appealed. 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Cataract surgery does not have to wait for "cooked" to do it again