<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          Many blind to the risks of contact lenses

          Updated: 2012-02-22 08:43

          By Yang Wanli (China Daily)

            Comments() Print Mail Large Medium  Small

          Although no date has been given for when the new rules will come into effect, the statement advised producers and vendors to cease making or importing cosmetic contact lenses to avoid potential financial losses, as products without the necessary certification will be blocked from sale.

          The difference between good and bad lenses is "like night and day", said Lu Yanyun, director of Tongren Hospital's contact lens center in Beijing.

          Manufacturers of quality products have devised a way to cushion the colored part of the lens so that it does not put pressure on the eye, she said, warning that people who use inferior varieties are risking their eyesight.

          "Poor-quality lenses can scratch or even poke holes in the cornea, which can basically make you go blind," Lu said.

          Johnson & Johnson Vision Care, one of the best-selling brands of contact lenses in China, produces two kinds of cosmetic lenses in three "natural" colors. Spokesman Yu Guoxiong said the colored layer of its lenses "doesn't touch the eye directly", while the design ensures permeability.

          "Although the changes (by the central government) will have an impact (on the market in China), I think a well-regulated market will encourage more people to choose cosmetic contact lenses," Yu added.

          At Bright World Glasses, a Beijing-based chain store, a saleswoman called Li said the brands she sells already meet the standards for medical apparatus.

          More than half of the store's customers buy colored lenses, with lenses that replicate an animal's eyes also selling well. "They are priced at about 1,000 yuan a pair," she said. "Cheaper ones have poor permeability and often lose their color."

          Even at Bright World Glasses customers do not need eye examinations prior to purchase.

          Yet, contact lenses in general greatly increase the risk of infections like pink eye and can deprive the eye of oxygen. Li Zhong at Intech Eye Hospital recommended that users wear products no longer than 10 hours straight. For cosmetic lenses, it should be no more than four hours.

          Many blind to the risks of contact lenses 

          Cosmetic lenses, such as this one, have been reclassified as "medical apparatus" and will soon be regulated by the State Food and Drug Administration. 

          主站蜘蛛池模板: 亚洲女同同性少妇熟女| 国产精品麻豆成人av网| 亚洲中文字幕久久精品码| 精品亚洲无人区一区二区| 久久中文字幕无码一区二区| 激情 自拍 另类 亚洲| 91免费精品国偷自产在线在线| 色综合久久久久综合体桃花网| 国产乱码一区二区三区免费| 国产精品午夜电影| 日韩中文字幕高清有码| 亚洲欧美综合一区二区三区| 成 人 a v免费视频在线观看| 韩国18禁啪啪无遮挡免费| 久久亚洲国产精品五月天| 欧美乱码伦视频免费| 国产初高中生粉嫩无套第一次| 国产亚洲av手机在线观看| 无码帝国www无码专区色综合 | 一本久久a久久免费精品不卡| 亚洲A综合一区二区三区| 国产精品久久久久鬼色| 高清国产亚洲精品自在久久| 精品国产高清中文字幕| 久久久久国产精品人妻电影| 日韩人妻无码一区二区三区综合部| 国产精品综合一区二区三区| 欧美成人午夜在线观看视频| 线观看的国产成人av天堂| 人妻少妇无码精品专区| 黑森林av导航| 国产中文字幕在线一区| 国产av巨作丝袜秘书| 黑人大荫道bbwbbb高潮潮喷| 亚洲一区二区三区久久蜜桃| 九九热在线精品视频首页| 最近最新中文字幕视频| 久久精品一区二区三区综合| 永久无码天堂网小说区| 亚洲高清av一区二区| 国产精品亚洲综合色区丝瓜|