Exercise your eyes and your reaction time!
Please note: this application was not made by a scientist or an optometrist - I'm just some dude who was bored and had a couple hours of spare time. There is no promise that this application will do anything to improve your vision or your reaction time. For all I know, it might cause headaches and blindness!
Like all video games, you should take breaks frequently, and immediately stop if you notice dizziness or eye strain. This application should be used for entertainment purposes only. This application is not intended to diagnose, treat, cure, or prevent any disease.
-- 1.0.4 --
* Republished with some more changes that might help with the crash on startup bug (especially on Nexus). If you still encounter the problem in 1.0.4 or higher, please try installing the app to your SD card, and let me know if it works!
-- 1.0.3 --
* Improved support for higher resolution devices and portrait view.