As I'm having some troubles with my eyes recently, I had to make those exercises, to tighten the eye muscles.
Each exercise take about 30 seconds, and after each 30 seconds, you have to relax your eyes..
All in all, the whole eye workout takes 5 minutes, so the timer has it's fixed end time set to 5 (changeable next update).
Thats why I've created this small application (which isn't perfect, but free ) so I don't digress to time while exercising.

Here is the application itself:
Download Link
And here are some screens for you to see it:
It might be useful if you are going to train your eyes, so I hope it helps someone.
And as it's just a small application, I didn't include the source code, but if someone needs it, PM me.

Best greets