For the stuff I have a hard time seeing even after my glasses and a lope I take a picture with my camera and use software, Paint Shop 4.12, to blow it up.
The reason I say Paint Shop 4.12 is because it was the last free version that is fully functional. It has a slight pause at the startup while it gives you the option to purchase, but 5 seconds is a small price to pay for a good paint program.
I also have the full Paint Shop Pro version I bought but still use the 4.12 more often. It quick just not as full featured.