We've had a font size setting for quite some time now. If you need specific fonts or higher contrast, we encourage you to apply them through browser and OS settings, because that fixes the problem across the entire web all at once. If we're succeeding as a search engine, you should be spending a lot more time looking at the pages we find for you throughout the web than you spend looking at our results pages.
Setup varies by platform, and will often go through OS settings (system-wide fixes, not just web-wide!). This is how I do it on Firefox:


On a search page:

First result; fonts and contrast settings still applied:
