<story><title>Why might reading make people myopic?</title><url>http://www.eye-tuebingen.de/the-institute/news-events/news/news-article/60-why-might-reading-make-myopic/</url></story><parent_chain></parent_chain><comment><author>tobr</author><text>Am I understanding this right? The choroid layer behind the retina gets slightly thinner when we look at dark details on a bright background, and slightly thicker when we look at bright details on a dark background, and somehow this causes an opposite effect in the overall eye growth over time. So spending a lot of time looking at dark letters on a bright background would cause the eye to become too long and unable to focus on objects far away.&lt;p&gt;Is there an explanation for why the choroid changes its thickness, and why this change would create an opposite effect in eye growth over a longer period?</text></comment>
<story><title>Why might reading make people myopic?</title><url>http://www.eye-tuebingen.de/the-institute/news-events/news/news-article/60-why-might-reading-make-myopic/</url></story><parent_chain></parent_chain><comment><author>nbeleski</author><text>I remember recently reading about the myopia increase in China and it was largely attributed to children staying much more inside, out of the sunlight, causing the eye to under-develop iirc.&lt;p&gt;I wonder how much these are correlated.</text></comment>