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未登录编辑者的页面 <a href="/wiki/Help:%E6%96%B0%E6%89%8B%E5%85%A5%E9%97%A8" aria-label="了解有关编辑的更多信息"><span>了解详情</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%B4%A1%E7%8C%AE" title="来自此IP地址的编辑列表[y]" accesskey="y"><span>贡献</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%AE%A8%E8%AE%BA%E9%A1%B5" title="对于来自此IP地址编辑的讨论[n]" accesskey="n"><span>讨论</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="站点"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目录" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目录</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">隐藏</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">序言</div> </a> </li> <li id="toc-观念" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#观念"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>观念</span> </div> </a> <ul id="toc-观念-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-參考" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#參考"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>參考</span> </div> </a> <ul id="toc-參考-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="目录" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="开关目录" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">开关目录</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">屈光度</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="前往另一种语言写成的文章。54种语言可用" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-54" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">54种语言</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D8%B3%D9%8A%D8%B1%D8%A9_(%D9%88%D8%AD%D8%AF%D8%A9_%D9%82%D9%8A%D8%A7%D8%B3)" title="كسيرة (وحدة قياس) – 阿拉伯语" lang="ar" hreflang="ar" data-title="كسيرة (وحدة قياس)" data-language-autonym="العربية" data-language-local-name="阿拉伯语" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Diopter" title="Diopter – 阿塞拜疆语" lang="az" hreflang="az" data-title="Diopter" data-language-autonym="Azərbaycanca" data-language-local-name="阿塞拜疆语" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BF%D1%82%D1%8A%D1%80" title="Диоптър – 保加利亚语" lang="bg" hreflang="bg" data-title="Диоптър" data-language-autonym="Български" data-language-local-name="保加利亚语" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A1%E0%A6%BE%E0%A6%87%E0%A6%85%E0%A6%AA%E0%A7%8D%E0%A6%9F%E0%A6%BE%E0%A6%B0" title="ডাইঅপ্টার – 孟加拉语" lang="bn" hreflang="bn" data-title="ডাইঅপ্টার" data-language-autonym="বাংলা" data-language-local-name="孟加拉语" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Di%C3%B2ptria" title="Diòptria – 加泰罗尼亚语" lang="ca" hreflang="ca" data-title="Diòptria" data-language-autonym="Català" data-language-local-name="加泰罗尼亚语" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Dioptrie" title="Dioptrie – 捷克语" lang="cs" hreflang="cs" data-title="Dioptrie" data-language-autonym="Čeština" data-language-local-name="捷克语" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Dioptri" title="Dioptri – 丹麦语" lang="da" hreflang="da" data-title="Dioptri" data-language-autonym="Dansk" data-language-local-name="丹麦语" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Dioptrie" title="Dioptrie – 德语" lang="de" hreflang="de" data-title="Dioptrie" data-language-autonym="Deutsch" data-language-local-name="德语" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Dioptre" title="Dioptre – 英语" lang="en" hreflang="en" data-title="Dioptre" data-language-autonym="English" data-language-local-name="英语" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Dioptrio" title="Dioptrio – 世界语" lang="eo" hreflang="eo" data-title="Dioptrio" data-language-autonym="Esperanto" data-language-local-name="世界语" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Dioptr%C3%ADa" title="Dioptría – 西班牙语" lang="es" hreflang="es" data-title="Dioptría" data-language-autonym="Español" data-language-local-name="西班牙语" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Dioptria" title="Dioptria – 爱沙尼亚语" lang="et" hreflang="et" data-title="Dioptria" data-language-autonym="Eesti" data-language-local-name="爱沙尼亚语" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Dioptria" title="Dioptria – 巴斯克语" lang="eu" hreflang="eu" data-title="Dioptria" data-language-autonym="Euskara" data-language-local-name="巴斯克语" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AF%DB%8C%D9%88%D9%BE%D8%AA%D8%B1" title="دیوپتر – 波斯语" lang="fa" hreflang="fa" data-title="دیوپتر" data-language-autonym="فارسی" data-language-local-name="波斯语" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Dioptria" title="Dioptria – 芬兰语" lang="fi" hreflang="fi" data-title="Dioptria" data-language-autonym="Suomi" data-language-local-name="芬兰语" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Dioptrie" title="Dioptrie – 法语" lang="fr" hreflang="fr" data-title="Dioptrie" data-language-autonym="Français" data-language-local-name="法语" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Diaptar" title="Diaptar – 爱尔兰语" lang="ga" hreflang="ga" data-title="Diaptar" data-language-autonym="Gaeilge" data-language-local-name="爱尔兰语" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Dioptr%C3%ADa" title="Dioptría – 加利西亚语" lang="gl" hreflang="gl" data-title="Dioptría" data-language-autonym="Galego" data-language-local-name="加利西亚语" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%93%D7%99%D7%95%D7%A4%D7%98%D7%A8" title="דיופטר – 希伯来语" lang="he" hreflang="he" data-title="דיופטר" data-language-autonym="עברית" data-language-local-name="希伯来语" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%A1%E0%A4%BE%E0%A4%AF%E0%A5%8B%E0%A4%AA%E0%A5%8D%E0%A4%9F%E0%A4%B0" title="डायोप्टर – 印地语" lang="hi" hreflang="hi" data-title="डायोप्टर" data-language-autonym="हिन्दी" data-language-local-name="印地语" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Dioptrija" title="Dioptrija – 克罗地亚语" lang="hr" hreflang="hr" data-title="Dioptrija" data-language-autonym="Hrvatski" data-language-local-name="克罗地亚语" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Dioptria" title="Dioptria – 匈牙利语" lang="hu" hreflang="hu" data-title="Dioptria" data-language-autonym="Magyar" data-language-local-name="匈牙利语" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B4%D5%AB%D6%85%D5%BA%D5%BF%D6%80%D5%AB%D5%A1" title="Դիօպտրիա – 亚美尼亚语" lang="hy" hreflang="hy" data-title="Դիօպտրիա" data-language-autonym="Հայերեն" data-language-local-name="亚美尼亚语" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Dioptri" title="Dioptri – 印度尼西亚语" lang="id" hreflang="id" data-title="Dioptri" data-language-autonym="Bahasa Indonesia" data-language-local-name="印度尼西亚语" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Diottria" title="Diottria – 意大利语" lang="it" hreflang="it" data-title="Diottria" data-language-autonym="Italiano" data-language-local-name="意大利语" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%87%E3%82%A3%E3%82%AA%E3%83%97%E3%83%88%E3%83%AA" title="ディオプトリ – 日语" lang="ja" hreflang="ja" data-title="ディオプトリ" data-language-autonym="日本語" data-language-local-name="日语" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BF%D1%82%D1%80" title="Диоптр – 哈萨克语" lang="kk" hreflang="kk" data-title="Диоптр" data-language-autonym="Қазақша" data-language-local-name="哈萨克语" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%94%94%EC%98%B5%ED%84%B0" title="디옵터 – 韩语" lang="ko" hreflang="ko" data-title="디옵터" data-language-autonym="한국어" data-language-local-name="韩语" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BF%D1%82%D1%80%D0%B8%D1%8F" title="Диоптрия – 柯尔克孜语" lang="ky" hreflang="ky" data-title="Диоптрия" data-language-autonym="Кыргызча" data-language-local-name="柯尔克孜语" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Dioptrija" title="Dioptrija – 立陶宛语" lang="lt" hreflang="lt" data-title="Dioptrija" data-language-autonym="Lietuvių" data-language-local-name="立陶宛语" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Dioptrija" title="Dioptrija – 拉脱维亚语" lang="lv" hreflang="lv" data-title="Dioptrija" data-language-autonym="Latviešu" data-language-local-name="拉脱维亚语" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BF%D1%82%D0%B5%D1%80" title="Диоптер – 马其顿语" lang="mk" hreflang="mk" data-title="Диоптер" data-language-autonym="Македонски" data-language-local-name="马其顿语" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%A1%E0%B4%AF%E0%B5%8B%E0%B4%AA%E0%B5%8D%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%BC" title="ഡയോപ്റ്റർ – 马拉雅拉姆语" lang="ml" hreflang="ml" data-title="ഡയോപ്റ്റർ" data-language-autonym="മലയാളം" data-language-local-name="马拉雅拉姆语" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BF%D1%82%D1%80" title="Диоптр – 蒙古语" lang="mn" hreflang="mn" data-title="Диоптр" data-language-autonym="Монгол" data-language-local-name="蒙古语" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Diopter" title="Diopter – 马来语" lang="ms" hreflang="ms" data-title="Diopter" data-language-autonym="Bahasa Melayu" data-language-local-name="马来语" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Dioptrie" title="Dioptrie – 荷兰语" lang="nl" hreflang="nl" data-title="Dioptrie" data-language-autonym="Nederlands" data-language-local-name="荷兰语" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Dioptri" title="Dioptri – 挪威尼诺斯克语" lang="nn" hreflang="nn" data-title="Dioptri" data-language-autonym="Norsk nynorsk" data-language-local-name="挪威尼诺斯克语" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Dioptri" title="Dioptri – 书面挪威语" lang="nb" hreflang="nb" data-title="Dioptri" data-language-autonym="Norsk bokmål" data-language-local-name="书面挪威语" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%A1%E0%A8%BE%E0%A8%87%E0%A8%AA%E0%A8%9F%E0%A8%B0" title="ਡਾਇਪਟਰ – 旁遮普语" lang="pa" hreflang="pa" data-title="ਡਾਇਪਟਰ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="旁遮普语" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Dioptria" title="Dioptria – 波兰语" lang="pl" hreflang="pl" data-title="Dioptria" data-language-autonym="Polski" data-language-local-name="波兰语" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Dioptria" title="Dioptria – 葡萄牙语" lang="pt" hreflang="pt" data-title="Dioptria" data-language-autonym="Português" data-language-local-name="葡萄牙语" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Dioptrie" title="Dioptrie – 罗马尼亚语" lang="ro" hreflang="ro" data-title="Dioptrie" data-language-autonym="Română" data-language-local-name="罗马尼亚语" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BF%D1%82%D1%80%D0%B8%D1%8F" title="Диоптрия – 俄语" lang="ru" hreflang="ru" data-title="Диоптрия" data-language-autonym="Русский" data-language-local-name="俄语" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Dioptre" title="Dioptre – Simple English" lang="en-simple" hreflang="en-simple" data-title="Dioptre" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Dioptrija" title="Dioptrija – 斯洛文尼亚语" lang="sl" hreflang="sl" data-title="Dioptrija" data-language-autonym="Slovenščina" data-language-local-name="斯洛文尼亚语" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BF%D1%82%D1%80%D0%B8%D1%98%D0%B0" title="Диоптрија – 塞尔维亚语" lang="sr" hreflang="sr" data-title="Диоптрија" data-language-autonym="Српски / srpski" data-language-local-name="塞尔维亚语" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Dioptri" title="Dioptri – 瑞典语" lang="sv" hreflang="sv" data-title="Dioptri" data-language-autonym="Svenska" data-language-local-name="瑞典语" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%9F%E0%AF%88%E0%AE%AF%E0%AE%BE%E0%AE%AA%E0%AF%8D%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AE%B0%E0%AF%8D" title="டையாப்ட்டர் – 泰米尔语" lang="ta" hreflang="ta" data-title="டையாப்ட்டர்" data-language-autonym="தமிழ்" data-language-local-name="泰米尔语" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%A1%E0%B0%AF%E0%B0%BE%E0%B0%AA%E0%B1%8D%E0%B0%9F%E0%B0%B0%E0%B1%8D" title="డయాప్టర్ – 泰卢固语" lang="te" hreflang="te" data-title="డయాప్టర్" data-language-autonym="తెలుగు" data-language-local-name="泰卢固语" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%84%E0%B8%94%E0%B8%AD%E0%B8%AD%E0%B8%9B%E0%B9%80%E0%B8%95%E0%B8%AD%E0%B8%A3%E0%B9%8C" title="ไดออปเตอร์ – 泰语" lang="th" hreflang="th" data-title="ไดออปเตอร์" data-language-autonym="ไทย" data-language-local-name="泰语" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Diyoptri" title="Diyoptri – 土耳其语" lang="tr" hreflang="tr" data-title="Diyoptri" data-language-autonym="Türkçe" data-language-local-name="土耳其语" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D1%96%D0%BE%D0%BF%D1%82%D1%80%D1%96%D1%8F" title="Діоптрія – 乌克兰语" lang="uk" hreflang="uk" data-title="Діоптрія" data-language-autonym="Українська" data-language-local-name="乌克兰语" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Dioptriya" title="Dioptriya – 乌兹别克语" lang="uz" hreflang="uz" data-title="Dioptriya" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="乌兹别克语" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Dioptre" title="Dioptre – 越南语" lang="vi" hreflang="vi" data-title="Dioptre" data-language-autonym="Tiếng Việt" data-language-local-name="越南语" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q193933#sitelinks-wikipedia" title="编辑跨语言链接" class="wbc-editpage">编辑链接</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav 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dir="ltr"><p><b>屈光度</b>（diopter，D）又称<b>透镜焦度</b>、<b>折光度</b><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>、<b>视度</b>（眼科）<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>，是<a href="/wiki/%E5%BA%A6%E9%87%8F" title="度量">度量</a><a href="/wiki/%E9%80%8F%E9%8F%A1" class="mw-redirect" title="透鏡">透鏡</a>或<a href="/wiki/%E6%9B%B2%E9%9D%A2%E9%8F%A1" title="曲面鏡">曲面镜</a><a href="/wiki/%E5%85%89%E5%AD%B8%E5%80%8D%E7%8E%87" title="光學倍率">光學倍率</a>（P），及眼球屈光介质<a href="/wiki/%E5%85%89%E5%AD%B8%E5%80%8D%E7%8E%87" title="光學倍率">屈光能力</a>的單位，等于<a href="/wiki/%E7%84%A6%E8%B7%9D" title="焦距">焦距</a>的<a href="/wiki/%E5%80%92%E6%95%B0" title="倒数">倒数</a>，即 <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle P=1/f}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>P</mi> <mo>=</mo> <mn>1</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mi>f</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P=1/f}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e2babf599c52eaa14e965346fcd3f5071971b7a6" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:8.447ex; height:2.843ex;" alt="{\displaystyle P=1/f}"></span> 或 <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle D={\frac {1}{f}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>D</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mi>f</mi> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle D={\frac {1}{f}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6a01c16c73b04e51ecb5d76dd34f2cef3b7356e9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:7.137ex; height:5.676ex;" alt="{\displaystyle D={\frac {1}{f}}}"></span>；國際單位制的單位是反米（m<sup>-1</sup>）。如：焦距是 15m，那麼屈光度为 1/15m<sup>-1</sup>。 </p> <div class="mw-heading mw-heading2"><h2 id="观念"><span id=".E8.A7.82.E5.BF.B5"></span>观念</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%B1%88%E5%85%89%E5%BA%A6&action=edit&section=1" title="编辑章节：观念"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/%E7%84%A6%E8%B7%9D" title="焦距">焦距</a> f 的长短標誌著折光能力的大小，焦距越短，其折光能力就越大。<a href="/wiki/%E7%9C%BC%E7%90%83" class="mw-redirect" title="眼球">眼球</a>折光能力變強有可能<a href="/wiki/%E8%BF%91%E8%A7%86" class="mw-redirect" title="近视">近视</a>，折光能力變弱有可能<a href="/wiki/%E9%81%A0%E8%A6%96" title="遠視">遠視</a>。</li></ul> <ul><li><a href="/wiki/%E5%87%B8%E9%80%8F%E9%95%9C" class="mw-redirect" title="凸透镜">凸透镜</a>（如：遠視镜片）的度数是正数(+)，凹透镜（如：近视镜片）的度数是负数(-)。</li></ul> <ul><li>一個+3屈光度的透鏡，會把平行的光線聚焦在鏡片的1/3米外。</li></ul> <ul><li>一般眼鏡常使用度數來表示屈光度，以屈光度 D 的數值乘以 100 就是度數<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>；例如 -1.0D 等於近視眼鏡（凹透鏡）的 100度。</li></ul> <div class="mw-heading mw-heading2"><h2 id="參考"><span id=".E5.8F.83.E8.80.83"></span>參考</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E5%B1%88%E5%85%89%E5%BA%A6&action=edit&section=2" title="编辑章节：參考"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://terms.naer.edu.tw/detail/d9fbf8d804b50c2bfcf6b21d2a81fdd8/?seq=4">存档副本</a>. <span class="reference-accessdate"> [<span class="nowrap">2024-02-03</span>]</span>. （原始内容<a rel="nofollow" class="external text" href="https://web.archive.org/web/20240726041015/https://terms.naer.edu.tw/detail/d9fbf8d804b50c2bfcf6b21d2a81fdd8/?seq=4">存档</a>于2024-07-26）.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E5%B1%88%E5%85%89%E5%BA%A6&rft.btitle=%E5%AD%98%E6%A1%A3%E5%89%AF%E6%9C%AC&rft.genre=unknown&rft_id=https%3A%2F%2Fterms.naer.edu.tw%2Fdetail%2Fd9fbf8d804b50c2bfcf6b21d2a81fdd8%2F%3Fseq%3D4&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://www.termonline.cn/search?searchText=diopter">存档副本</a>. <span class="reference-accessdate"> [<span class="nowrap">2024-02-03</span>]</span>. （原始内容<a rel="nofollow" class="external text" href="https://web.archive.org/web/20240203071054/https://www.termonline.cn/search?searchText=diopter">存档</a>于2024-02-03）.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E5%B1%88%E5%85%89%E5%BA%A6&rft.btitle=%E5%AD%98%E6%A1%A3%E5%89%AF%E6%9C%AC&rft.genre=unknown&rft_id=https%3A%2F%2Fwww.termonline.cn%2Fsearch%3FsearchText%3Ddiopter&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="http://home.phy.ntnu.edu.tw/~eureka/contents/elementary/chap%205/5-4-2.htm">透鏡</a>. <span class="reference-accessdate"> [<span class="nowrap">2011-07-17</span>]</span>. （原始内容<a rel="nofollow" class="external text" href="https://web.archive.org/web/20100529173140/http://home.phy.ntnu.edu.tw/~eureka/contents/elementary/chap%205/5-4-2.htm">存档</a>于2010-05-29）.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E5%B1%88%E5%85%89%E5%BA%A6&rft.btitle=%E9%80%8F%E9%8F%A1&rft.genre=unknown&rft_id=http%3A%2F%2Fhome.phy.ntnu.edu.tw%2F~eureka%2Fcontents%2Felementary%2Fchap%25205%2F5-4-2.htm&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div> <table class="metadata plainlinks stub" role="presentation" style="background:transparent"><tbody><tr class="noresize"><td><span typeof="mw:File"><a href="/wiki/File:Optic_stub.svg" 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