Some people who don`t have good vision sometimes have problems reading what`s on-screen. For this reason it`s always a good idea to have a tool like QZoom. It`s a utility that can make the part of the screen you indicate bigger, by zooming in.
This way, with QZoom you can read the text in a much bigger size, and view videos or the details of any element on-screen. To zoom in on an area, you can do it using the mouse wheel or with key combinations configured by you.
QZoom is totally free.