This is cool! I being training my eyes using yoga exercises for about 2 months and I can really few the improvements by now. I'll test this app to see if it helps. Somethings we get in front of a computer too much and your eyes begin to loose the ability to see things farther. It's all about training the muscles.
What sort of yoga exercises work for your eyes?
At 4m10s she shows the one I'm practicing the most now, training to focus. I like to do it one eye at a time, and then both. I don't aways use the thumb, I like to go to a park and do it between trees, when I'm on a bus I do it between the window's borders (because it's not transparent) and things out side.
Blink is very important to, try to remember to blink, so it's always lubricated enough. I tend to blink less when I'm on a computer, it's something I'm trying to work on.
I'll give it a few more months to see how it reflects on the eye doctor exam.