玩手机对眼睛的伤害，究竟有多大？
<p><span word="We">We</span> <span word="all">all</span> <span word="know">know</span> <span word="that">that</span> <span word="the">the</span> <span word="blue">blue</span> <span word="light">light</span> <span word="that">that</span> <span word="emits">emits</span> <span word="from">from</span> <span word="our">our</span> <span word="smartphones">smartphones</span> <span word="isn">isn</span>'<span word="t">t</span> <span word="good">good</span> <span word="for">for</span> <span word="our">our</span> <span word="eyes">eyes</span>, <span word="but">but</span> <span word="a">a</span> <span word="new">new</span> <span word="study">study</span> <span word="has">has</span> <span word="discovered">discovered</span> <span word="just">just</span> <span word="how">how</span> <span word="much">much</span> <span word="damage">damage</span> <span word="it">it</span> <span word="can">can</span> <span word="cause">cause</span>.</p><p>我们都知道智能手机发出的蓝光对眼睛有伤害，但一项最新研究发现了这些蓝光的具体的伤害程度。</p><p><span word="Researchers">Researchers</span> <span word="say">say</span> <span word="that">that</span> <span word="this">this</span> <span word="light">light</span> <span word="is">is</span> <span word="absorbed">absorbed</span> <span word="by">by</span> <span word="vital">vital</span> <span word="molecules">molecules</span> <span word="in">in</span> <span word="our">our</span> <span word="retina">retina</span> <span word="and">and</span> <span word="triggers">triggers</span> <span word="the">the</span> <span word="production">production</span> <span word="of">of</span> <span word="a">a</span> <span word="toxic">toxic</span> <span word="chemical">chemical</span> <span word="that">that</span> <span word="kill">kill</span> <span word="cells">cells</span>.</p><p>研究人员发现，视网膜上面的主要分子会吸收这些蓝光，并会产生有毒的化学物质来杀死细胞。</p><p><span word="This">This</span> <span word="damage">damage</span> <span word="can">can</span> <span word="lead">lead</span> <span word="to">to</span> <span word="large">large</span> <span word="blind">blind</span> <span word="spots">spots</span> <span word="in">in</span> <span word="our">our</span> <span word="vision">vision</span> <span word="that">that</span> <span word="are">are</span> <span word="the">the</span> <span word="hallmark">hallmark</span> <span word="of">of</span> <span word="macular">macular</span> <span word="degeneration">degeneration</span>, <span word="a">a</span> <span word="disease">disease</span> <span word="that">that</span> <span word="leads">leads</span> <span word="to">to</span> <span word="blindness">blindness</span>.</p><p>这种伤害可导致视力出现大面积盲点，也就是黄斑病变的典型特征。这种疾病最终会导致失明。</p><p><span word="The">The</span> <span word="team">team</span> <span word="from">from</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Toledo">Toledo</span> <span word="in">in</span> <span word="Ohio">Ohio</span> <span word="says">says</span> <span word="it">it</span> <span word="is">is</span> <span word="urging">urging</span> <span word="the">the</span> <span word="public">public</span> <span word="to">to</span> <span word="not">not</span> <span word="use">use</span> <span word="phones">phones</span> <span word="in">in</span> <span word="the">the</span> <span word="dark">dark</span> <span word="because">because</span> <span word="this">this</span> <span word="can">can</span> <span word="dilate">dilate</span> <span word="pupils">pupils</span> <span word="and">and</span> <span word="lead">lead</span> <span word="to">to</span> <span word="even">even</span> <span word="more">more</span> <span word="harmful">harmful</span> <span word="blue">blue</span> <span word="light">light</span> <span word="entering">entering</span> <span word="our">our</span> <span word="eyes">eyes</span>.</p><p>来自俄亥俄托莱多大学的研究小组，呼吁公众不要在暗处使用手机，这样会导致瞳孔放大，而且导致更多蓝光进入我们的眼睛。</p><p><span word="Age">Age</span>-<span word="related">related</span> <span word="macular">macular</span> <span word="degeneration">degeneration</span> (<span word="AMD">AMD</span>) <span word="is">is</span> <span word="the">the</span> <span word="leading">leading</span> <span word="cause">cause</span> <span word="of">of</span> <span word="vision">vision</span> <span word="loss">loss</span> <span word="for">for</span> <span word="those">those</span> <span word="age">age</span> 50 <span word="or">or</span> <span word="older">older</span>, <span word="according">according</span> <span word="to">to</span> <span word="the">the</span> <span word="National">National</span> <span word="Eye">Eye</span> <span word="Institute">Institute</span>.</p><p>国立眼科研究所的数据表示，由于黄斑病变导致视力减弱的主要是50岁及以上的人群。</p>
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