在光线暗处看书真的对眼睛有害吗?
<p><span word="Mom">Mom</span> <span word="always">always</span> <span word="told">told</span> <span word="us">us</span> <span word="we">we</span>'<span word="d">d</span> <span word="go">go</span> <span word="blind">blind</span> <span word="if">if</span> <span word="we">we</span> <span word="read">read</span> <span word="in">in</span> <span word="the">the</span> <span word="dark">dark</span>. <span word="Does">Does</span> <span word="science">science</span> <span word="back">back</span> <span word="her">her</span> <span word="up">up</span>? <span word="Jim">Jim</span> <span word="Sheedy">Sheedy</span>, <span word="a">a</span> <span word="doctor">doctor</span> <span word="of">of</span> <span word="vision">vision</span> <span word="science">science</span> <span word="and">and</span> <span word="director">director</span> <span word="of">of</span> <span word="the">the</span> <span word="Vision">Vision</span> <span word="Performance">Performance</span> <span word="Institute">Institute</span> <span word="at">at</span> <span word="Oregon">Oregon</span>'<span word="s">s</span> <span word="Pacific">Pacific</span> <span word="University">University</span>, <span word="sets">sets</span> <span word="his">his</span> <span word="sights">sights</span> <span word="on">on</span> <span word="the">the</span> <span word="truth">truth</span>.</p><p>妈妈总是告诉我们如果我们在暗处看书会弄坏眼睛。这种说法有科学依据吗？且听俄勒冈太平洋大学(<span word="Pacific">Pacific</span> <span word="University">University</span>)视觉功能学院(<span word="Vision">Vision</span> <span word="Performance">Performance</span> <span word="Institute">Institute</span>)所长、视觉科学医生吉姆?希迪(<span word="Jim">Jim</span> <span word="Sheedy">Sheedy</span>)为我们揭示真相。</p><p><span word="Dark">Dark</span> <span word="Matter">Matter</span></p><p>暗处阅读</p><p><span word="Turns">Turns</span> <span word="out">out</span>, <span word="our">our</span> <span word="parents">parents</span> <span word="were">were</span> <span word="wrong">wrong</span>. '<span word="There">There</span> <span word="is">is</span> <span word="no">no</span> <span word="reason">reason</span> <span word="to">to</span> <span word="believe">believe</span> <span word="nor">nor</span> <span word="evidence">evidence</span> <span word="to">to</span> <span word="support">support</span> <span word="that">that</span> <span word="any">any</span> <span word="long">long</span>-<span word="term">term</span> <span word="damage">damage</span> <span word="to">to</span> <span word="the">the</span> <span word="eyes">eyes</span> <span word="or">or</span> <span word="change">change</span> <span word="in">in</span> <span word="the">the</span> <span word="physiology">physiology</span> <span word="to">to</span> <span word="the">the</span> <span word="eyes">eyes</span> <span word="can">can</span> <span word="be">be</span> <span word="caused">caused</span> <span word="by">by</span> <span word="reading">reading</span> <span word="in">in</span> <span word="the">the</span> <span word="dark">dark</span>,' <span word="Dr">Dr</span>. <span word="Sheedy">Sheedy</span> <span word="says">says</span>。</p><p>原来，我们的父母是错的。希迪博士说：“我们没有理由认为，也没有证据证明，在暗处阅读会造成眼睛的长期损害，或引起眼睛的生理变化。”</p><p><span word="That">That</span> <span word="is">is</span> <span word="not">not</span> <span word="to">to</span> <span word="say">say</span> <span word="that">that</span> <span word="nocturnal">nocturnal</span> <span word="page">page</span>-<span word="turning">turning</span> <span word="won">won</span>'<span word="t">t</span> <span word="lead">lead</span> <span word="to">to</span> <span word="discomfort">discomfort</span> <span word="or">or</span> <span word="fatigue">fatigue</span>。</p><p>但这并不意味着在夜间昏暗光线下看书不会引起不适和疲劳。</p><p><span word="The">The</span> <span word="lack">lack</span> <span word="of">of</span> <span word="light">light</span> <span word="will">will</span> <span word="cause">cause</span> <span word="the">the</span> <span word="pupils">pupils</span> <span word="to">to</span> <span word="dilate">dilate</span>, <span word="resulting">resulting</span> <span word="in">in</span> <span word="a">a</span> <span word="smaller">smaller</span> <span word="depth">depth</span> <span word="of">of</span> <span word="field">field</span> -- <span word="the">the</span> <span word="distance">distance</span> <span word="between">between</span> <span word="the">the</span> <span word="nearest">nearest</span> <span word="and">and</span> <span word="farthest">farthest</span> <span word="object">object</span> <span word="that">that</span> <span word="the">the</span> <span word="eye">eye</span> <span word="considers">considers</span> <span word="to">to</span> <span word="be">be</span> <span word="in">in</span> <span word="focus">focus</span>. <span word="Dr">Dr</span>. <span word="Sheedy">Sheedy</span> <span word="says">says</span> <span word="the">the</span> <span word="added">added</span> <span word="effort">effort</span> <span word="to">to</span> <span word="change">change</span> <span word="focus">focus</span> (<span word="called">called</span> <span word="the">the</span> <span word="eye">eye</span>'<span word="s">s</span> <span word="accommodative">accommodative</span> <span word="system">system</span>) <span word="and">and</span> <span word="the">the</span> <span word="effort">effort</span> <span word="to">to</span> <span word="change">change</span> <span word="the">the</span> <span word="angle">angle</span> <span word="of">of</span> <span word="the">the</span> <span word="lines">lines</span> <span word="of">of</span> <span word="sight">sight</span> <span word="between">between</span> <span word="the">the</span> <span word="two">two</span> <span word="eyes">eyes</span> (<span word="called">called</span> <span word="the">the</span> <span word="vergent">vergent</span> <span word="system">system</span>) <span word="will">will</span> <span word="likely">likely</span> <span word="make">make</span> <span word="your">your</span> <span word="eyes">eyes</span> <span word="feel">feel</span> <span word="tired">tired</span> <span word="and">and</span> <span word="your">your</span> <span word="body">body</span> <span word="spent">spent</span>. <span word="But">But</span>, <span word="of">of</span> <span word="course">course</span>, <span word="that">that</span>'<span word="s">s</span> <span word="often">often</span> <span word="the">the</span> <span word="object">object</span> <span word="of">of</span> <span word="reading">reading</span> <span word="under">under</span> <span word="the">the</span> <span word="covers">covers</span>。</p>
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