If you’ve recently switched to OS X, then you must have noticed smooth text fonts while browsing sites on the web browser. The reason for this is smooth font rendering, that is enabled by default on Mac OS which is actually a good feature, but most users specially those who have ported from Windows to Mac may find it pretty annoying.
That’s because a majority of sites use small sized fonts that appears pretty darker and without any sharpness when font smoothing is On. This makes it difficult to read the content and might cause strain to your eyes. So, let’s see how to overcome the problem of smooth fonts on Apple Mac OS. 
Turning off Smooth Fonts on Mac OS X 10.6 Snow Leopard – Font smoothing can be easily turned on or off, click Apple logo from top left corner, open System Preferences and click on the Appearance option.
Under Appearance window, uncheck the option ‘Use LCD font smoothing when available’.
The smooth fonts will not appear anymore, you can Turn On this feature anytime.
