Abstract: bionic lens can treat myopia. It only takes 10 seconds to restore vision, and even improve vision to more than 3 times of 10. Is such a magical treatment really reliable? Experts pointed out that this treatment method is exaggerated propaganda, and the treatment effect also needs long-term evaluation., An article entitled “bionic lens invented by Canada can restore vision in 10 seconds” has caused another storm on the Internet a few days ago. As early as may this year, the media pointed out that the technology had many hard injuries. However, some patients are still obsessed with this technology and look forward to eliminating myopia., Is biomimetic lens feasible in theory? Does the treatment of myopia need such a big fight? With the continuous renovation of scientific and technological means, is there a restricted area for disease treatment? The reporter interviewed experts in the industry., The mechanism and effect are exaggerated. The report on the bionic lens “ocumetic” first appeared in the British Daily Mail on May 21. Dr. Weber, the lens developer, claims that wearing this bionic lens requires only an 8-minute small implantation operation. The bionic lens is folded and placed into the syringe together with normal saline, and then implanted into the eye through painless injection. After 10 seconds, the lens will unfold and stick to the surface of the eye. The report claims that this method can permanently correct vision and even improve the visual acuity level to 1. More than 3 times of 0, allowing the patient to step into the “high-definition vision” in one step., “This technology can’t be achieved without 10 or 20 years.” Zhou Yuehua, director of ophthalmic refractive center of Beijing Tongren Hospital Affiliated to Capital Medical University, said bluntly. Liu Xipu, President of Beijing shengkanghua Eye Hospital, said: “if this is really a new scientific discovery, at least an original article should be published in a professional magazine to confirm its authenticity and scientificity.”, Professor Lu Wenxiu, former director of the myopia center of Beijing Tongren Hospital and President of Beijing Xinli Eye Hospital, said that the report was infinitely exaggerated from the mechanism of intraocular lens to the claimed effect., “The so-called bionic lens is actually an artificial lens.” In the interview, many experts said that at present, the treatment of cataract with intraocular lens is a very mature operation. When the intraocular lens is injected into the eye, it will spread in the eye in 10 seconds. It takes only five or six minutes for a skilled doctor to perform cataract extraction combined with intraocular lens implantation. Therefore, it is a gimmick to say that the bionic lens will unfold in 10 seconds and the operation will only take 8 minutes.,
, an article entitled “bionic lens invented by Canada, which can restore vision in 10 seconds”, has caused another storm on the Internet a few days ago. As early as may this year, the media pointed out that the technology had many hard injuries. However, some patients are still obsessed with this technology and look forward to the elimination of myopia. Is
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bionic lenses feasible in theory? Does the treatment of myopia need such a big fight? With the continuous renovation of scientific and technological means, is there a restricted area for disease treatment? The reporter interviewed industry experts. The mechanism and effect of
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are exaggerating. The report of
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on bionic lens “ocumetic” first appeared in the British Daily Mail on May 21. Dr. Weber, the lens developer, claims that wearing this bionic lens requires only an 8-minute small implantation operation. The bionic lens is folded and placed into the syringe together with normal saline, and then implanted into the eye through painless injection. After 10 seconds, the lens will unfold and stick to the surface of the eye. The report claims that this method can permanently correct vision and even improve the visual acuity level to 1. More than 3 times of 0, allowing patients to step into the “high-definition vision” in one step.
“this technology will not be achieved in 10 or 20 years.” Zhou Yuehua, director of ophthalmic refractive center of Beijing Tongren Hospital Affiliated to Capital Medical University, said bluntly. Liu Xipu, President of Beijing shengkanghua Eye Hospital, said: “if this is really a new scientific discovery, at least original articles should be published in professional magazines to confirm its authenticity and scientificity.”
Professor Lu Wenxiu, former director of the myopia center of Beijing Tongren Hospital and President of Beijing Xinli Eye Hospital, said that this report is infinitely exaggerated from the mechanism of intraocular lens to the claimed effect.
“the so-called bionic lens is actually an artificial lens.” In the interview, many experts said that at present, the treatment of cataract with intraocular lens is a very mature operation. When the intraocular lens is injected into the eye, it will spread in the eye in 10 seconds. It takes only five or six minutes for a skilled doctor to perform cataract extraction combined with intraocular lens implantation. Therefore, the 10 second bionic lens deployment and the operation takes only 8 minutes are pure gimmicks. “The intraocular lens mentioned in the
“report can zoom quickly and improve the visual acuity to more than 3 times of 1.0, which is difficult to achieve.” Lu Wenxiu said that a person can see things clearly, in addition to relying on a clear and transparent refractive system (including cornea, lens, vitreous, etc.) and its matching refractive state, it should also be realized by a series of functions such as advanced zoom function, light sensing system (retinal function), divine meridian reception and transmission, central cognition and expression. Only changing the refractive state can not achieve the overall improvement of visual function.
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Lu Wenxiu further explained that the adjustment of the lens depends on hundreds of ligaments connected with the ciliary muscle, which can see clearly through the organic linkage of the two. Therefore, how to connect with ligaments and nerves and how to participate in the regulation of the whole system are the technical barriers faced by bionic lenses. Secondly, there are many factors affecting vision. For example, high myopia will lead to a series of degenerative changes in the eye, and the muscle regulation ability of the elderly will decline. Only implanting a good lens will not necessarily enable all patients to have ideal vision. Some experts from
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said that if, as reported by the media, the technology has not been tested in animals at present, it will certainly not be able to enter clinical application on a large scale in 2017. Because the combination of any material and biology is not absolute, the long-term effect and safety of implanted intraocular materials need long-term evaluation.
the degree of treatment varies from person to person.
some people are obsessed with new technology, and some people question whether myopia is neededtreatment. In this regard, Zhou Yuehua said that it completely depends on the patients’ requirements for their own quality of life. For example, soldiers, athletes, stewardess and other people are not allowed to wear glasses, so they must take off glasses for treatment. Lu Wenxiu said that low myopia may not have a great impact on eye health, but high myopia is easy to cause a series of problems in the eye, such as fundus hemorrhage, vitreous opacity, retinal detachment, early cataract and premature degeneration of the eye, so they have to be treated.
“even if we can use zoom intraocular lens to treat myopia in the future, we must fully weigh the pros and cons. The operation will be accompanied by the risk of infection and bleeding; after intraocular lens implantation, we will also face the possibility of position deviation, resulting in blurred vision, and may also stimulate and affect the surrounding tissues.” Lu Wenxiu said. In the interview with
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, Zhou Yuehua also stressed that the media’s publicity on the treatment effect of myopia is actually misleading. “Many people believe that after myopia treatment, the visual acuity can reach 1.2 and 1.5, but the treatment standards for patients of each age group are different.” For example, a 50 year old patient is presbyopia if his visual acuity reaches 1. 5. You can’t see things near you clearly. If you have 50 ~ 100 degrees of myopia, his ability to see things far and near can just be satisfied. Therefore, as long as the vision of patients after treatment can meet their own work, life and learning needs, the treatment can be considered effective. According to the latest statistics, by 2012, the total number of patients with myopia among the total population over the age of 5 in China had reached 4. 500 million, the incidence rate of myopia among young people in China ranks first in the world. Without effective policy intervention, the prevalence of myopia in China’s population over 5 years old will increase to 51% and 700 million by 2020. The huge demand of patients forces the continuous updating and acceleration of myopia treatment technology.
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according to Zhou Yuehua, the current myopia treatment technologies, including femtosecond laser and excimer laser, can fully meet the clinical needs of patients.
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Lu Wenxiu told reporters that there are also methods of using intraocular lens implantation to treat ultra-high myopia in clinic. Different from “ocumetic”, the current method is to implant a small crystal between the lens and iris to improve its diopter. This method is a good choice for patients with ultra-high myopia and poor corneal conditions. Lu Wenxiu,
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, said that the zoom IOLs need to be gelatinous or near liquid like the real lens. They have a certain degree of elasticity. They can adjust the diopter by changing the shape, and at the same time have the normal size of the optic area. Even if all the ideas can be realized at the technical level, it can only approach infinitely and can not really have all the functions of human lens. Lu Wenxiu of
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believes that for a large number of myopia patients in China, a correct understanding of myopia and its prevention and control knowledge is far more important than blindly pursuing new technologies. “How to more effectively prevent the occurrence of myopia and how to control the degree of myopia at the lowest level are national eye health problems that need to be paid attention to. Only with the joint efforts of the whole society can we take off the hat of ‘a big country with myopia’.”