Did you know that if you have trouble seeing your computer screen, you can make the text larger? Hold down the control button (command on a mac) and press the + button. On my keyboard the + is in the upper right hand corner next to the backspace button. Every time you press control + the text will get larger. You can press it more than once to make the text really big.
To make things smaller, press control (command on a mac) and -. To return everything back to normal press control (command on a mac) and zero.