Let's face it, we're all getting older... every day, our bodies deteriorate just a little more. For those most part, this doesn't affect our ability to use technology. There is one organ, however, that has a direct impact on our ability to work (apart from our brain, of course)... our eyes. As our eyes slowly deteriorate, it becomes more and more difficult to see detail.
To combat this, you could leave a magnifying glass on your desk, or you can take simple steps to enlarging icons and text. Customizing your Desktop is a great place to begin making this adjustment.
This is what my Desktop looks like:
The text is set to 10 point, and the icons are set to 40 pixels wide. To adjust those values and enlarge the text/icons, go to View > Show View Options on the Finder menu bar (or press CMD + J). This will open the properties pane for your Desktop.
Take a minute to review the options here. As you can see, you can adjust more than just the size of the text and icons. You can also adjust the space between icons, icon sort order, label position and more. These options not only help you to more quickly identify the item you're looking for, but will help to keep your Desktop organized.
I've made a few adjustments on mine to show you (in an extreme scenario) the affect these settings can have: