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      <h1 class="title"><a href="/blogs/news/blue-lights-affect-not-only-your-vision-but-also-the-quality-of-your-sleep">Blue lights affect not only your vision but also the quality of your sleep.</a></h1>
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            <a title="Youtube" aria-hidden="true" target="_blank" class="glyph youtube" href="https://www.youtube.com/channel/UCiYIu5MgMAFAqw_WFy1ziBQ"></a>
            

          </div>
        </div> 
      </div>
    </div>

    <div class="row">
      <div class="columns">
         
          <ul class="payment-options">
            
            
            <li aria-hidden="true" class="glyph visa"></li>
            <li aria-hidden="true" class="glyph mastercard"></li>
            
            
            <li aria-hidden="true" class="glyph paypal"></li>
            
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  </footer>

  <script src="//cdn.shopify.com/s/files/1/0682/0971/t/37/assets/plugins.js?v=10111029871391831714" type="text/javascript"></script>
  <script src="//cdn.shopify.com/s/files/1/0682/0971/t/37/assets/shop.js?v=18283761379002977815" type="text/javascript"></script>
  
  
<input type="hidden" name="_pc_params" value="retinaguard-store.myshopify.com:" />

 
<!-- Shopping cart -->

<div class="nosto_cart" style="display:none">

</div>

 
<!-- BEEKETINGSCRIPT CODE START --><!-- BEEKETINGSCRIPT CODE END -->

  
 <!-- Google 再营销代码 -->
<!--------------------------------------------------
再营销代码不得与个人身份信息相关联，也不得放置在与敏感类别相关的网页上。有关如何设置代码的详细信息和说明，请访问：http://google.com/ads/remarketingsetup
--------------------------------------------------->
<script type="text/javascript">
var google_tag_params = {
ecomm_prodid: 'REPLACE_WITH_VALUE',
ecomm_pagetype: 'REPLACE_WITH_VALUE',
ecomm_totalvalue: 'REPLACE_WITH_VALUE',
};
</script>
<script type="text/javascript">
/* <![CDATA[ */
var google_conversion_id = 937295644;
var google_custom_params = window.google_tag_params;
var google_remarketing_only = true;
/* ]]> */
</script>
<script type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">
</script>
<noscript>
<div style="display:inline;">
<img height="1" width="1" style="border-style:none;" alt="" src="//googleads.g.doubleclick.net/pagead/viewthroughconversion/937295644/?value=0&amp;guid=ON&amp;script=0"/>
</div>
</noscript>
  

<script>
    if(typeof(Spurit) === 'undefined'){
        var Spurit = {};
    }
    if(!Spurit.Preorder2){
        Spurit.Preorder2 = {};
    }
    if(!Spurit.Preorder2.snippet){
      Spurit.Preorder2.snippet = {};
    }
    if(!Spurit.Preorder2.snippet.products){
      Spurit.Preorder2.snippet.products = {};
    }
    Spurit.Preorder2.snippet.shopHash = '9145d9b08cb2dac00b59c009239dc1bd';
    Spurit.Preorder2.snippet.cacheTimestamp = 1591273002;

    if(typeof(Spurit.globalSnippet) === 'undefined'){
        Spurit.globalSnippet = {
            shop_currency: 'USD',
            money_format: '${{amount}}',
            cart: {"note":null,"attributes":{},"original_total_price":0,"total_price":0,"total_discount":0,"total_weight":0.0,"item_count":0,"items":[],"requires_shipping":false,"currency":"USD","items_subtotal_price":0,"cart_level_discount_applications":[]},
            customer_id: ''
        };
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</script>

<style> /* Safely hide ATC button */
    body:not(.spo-loaded) [data-shopify="payment-button"], 
body:not(.spo-loaded).template-product form[action="/cart/add"] [type=submit], 
body:not(.spo-loaded).template-collection form[action="/cart/add"] [type=submit], 
body:not(.spo-loaded).template-index form[action="/cart/add"] [type=submit], 
body:not(.spo-loaded) form[action="/cart/add"] [type=submit] {opacity: 0; pointer-events: none}
    body:not(.spo-loaded) form[action^="/cart"]:not([action^="/cart/add"]):not(#currency_form) button, 
body:not(.spo-loaded) form[action^="/cart"]:not([action^="/cart/add"]):not(#currency_form) input[type="submit"], 
body:not(.spo-loaded) form[action^="/cart"]:not([action^="/cart/add"]):not(#currency_form) input[type="button"], 
body:not(.spo-loaded) [name="checkout"], 
body:not(.spo-loaded) [name="goto_pp"], 
body:not(.spo-loaded) [name="goto_amazon_payments"] {opacity: 0; pointer-events: none}
</style>
<noscript>
    <style> /* if no javascript: get back ATC button */
        body:not(.spo-loaded) [data-shopify="payment-button"], 
body:not(.spo-loaded).template-product form[action="/cart/add"] [type=submit], 
body:not(.spo-loaded).template-collection form[action="/cart/add"] [type=submit], 
body:not(.spo-loaded).template-index form[action="/cart/add"] [type=submit], 
body:not(.spo-loaded) form[action="/cart/add"] [type=submit] {opacity: 1; pointer-events: all}
        body:not(.spo-loaded) form[action^="/cart"]:not([action^="/cart/add"]):not(#currency_form) button, 
body:not(.spo-loaded) form[action^="/cart"]:not([action^="/cart/add"]):not(#currency_form) input[type="submit"], 
body:not(.spo-loaded) form[action^="/cart"]:not([action^="/cart/add"]):not(#currency_form) input[type="button"], 
body:not(.spo-loaded) [name="checkout"], 
body:not(.spo-loaded) [name="goto_pp"], 
body:not(.spo-loaded) [name="goto_amazon_payments"] {opacity: 1; pointer-events: all}
    </style>
</noscript>
<script>
  (function() {
    setTimeout(() => document.querySelector('body').classList.add('spo-loaded'), 5000)
  })();
</script>

    <script src="https://amaicdn.com/preorder2/common.js"></script>

  <script src="//cdn.codeblackbelt.com/js/modules/currency-converter-plus/main.min.js?shop=retinaguard-store.myshopify.com" defer></script>
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