Rated 4 out of 5 stars

JDPower, you're so wrong and so mentally- frozen! You can train your eyes, it is a reality.
I can be a witness both, for having tested eye training and having my sight greatly improved with various daily exercices and second, to have studied the matter in my university formation.
Of course, a lot of people can improve their sight and some can even avoid to wear glasses. But it is not good for the economy, isn't it?
This extension is a great idea, but could you add various exercices. The key for improving sight is diversity.

This review is for a previous version of the add-on (0.05.1). 

Rated 3 out of 5 stars

Although this game may not be able to improve your vision, it can be used to monitor how fast it is deteriorating. Also, it can be used to see if those new glasses you got are actually working.
If you have some time to waste, this could also be a fun little game.
Although not the best add-on, it does have it's uses.

This review is for a previous version of the add-on (0.05). 

Rated 1 out of 5 stars

What utter nonsense, this addon will actually do the opposite of what it claims. Think about it - what happens if you strain your eyes on a regular basis? Over a matter of time your eyesight worsens and you end up wearing glasses. You CAN'T improve your eyesight by regularly straining your eyes (Nintendo were forced to admit as much with their 'eye training' DS game).
If you could don't you thing opticians would recommend 'eye training' instead of glasses!

This review is for a previous version of the add-on (0.04). 

confusing descriptions [fixed]

Yes, the expression "Everyday training improves eyesight." was potentially misleading. Thank you for your explanation of the wrong understanding. The extension's descriptions have been updated.