I'm wondering if it is possible to do this, or if there is a program I can download?
Using MBP running Mac OS 10.8.2.
The reason for this is that I have glasses, and usually take my glasses off when using the computer. Recently I have changed to contact lenses, and so I would need to take my contacts out everytime I jumped on the computer (much more difficult than glasses obviously). If there is a way to adjust the focus on the screen, I wouldn't need to take my contact lenses out. Make the screen blurred, thus making it clear for my eyes.
Thanks for your answers :)
См. статью: How to adjust a computer screens focus? (make it blurred etc)?