I should have tri-focals, well that's not correct, I do have them but I never wear them. I use my "computer" glasses. They are setup so the top 1/3ish is for distance, the large middle bit is for reading my computer and there is a bottom bit for close up work, like reading from a book. The "normal" tri's were making me move my head way too much to be useful. The computer glasses seem to give me the most use for my prescription. I'm not totally blind, but I do lose focus oh about 4 inches past my nose. And I was told last week that I have cataract(s) developing in my "good" eye which is messing with my night vision.