<p>Screen size matters but resolution quality matters a lot too. The 13’’ is 1280x800 which is perfect for its size. It won’t hurt your eyes, but if you have to fit a lot of pages onto the screen then it’ll be a problem. Personally I only have 4 max firefoxes with a couple tabs. I prefer to keep my screen clean.</p>
<p>The 15’’ has a base of 1440-900 which is also not an eye strainer. Good for fitting multiple pages on your screen.</p>
<p>Personally the HD resolution of those 1080p screens you find on top PC’s hurt my eyes. Too many pixels can be bad.</p>
<p>If money isn’t a problem then get the 15 inch.</p>