I received my order of this book yesterday and read the first half of it. I tested my eyes against the supplied eye chart before I started.I have 20/20 vision in my right eye but a lazy eye on the left and I could only read the top couple of lines with it.
I tried a few of the exercises in the book and could read down to the 3rd line on the chart within minutes and even some of the letters on the fourth and fifth line.
Today I read the rest of the book and tried again.
I could read down to the seventh line with my bad eye and could see even clearer with my good eye.
I even read some of the book with my bad eye alone whereas before all I could see was a grey blur.
If this is the result after two days then it cant be bad. I am determined to obtain clear sight in my bad eye and then go back to my optician for a test just to prove there is a difference.
I have never had to wear glasses since I left school because the eyesight in my good eye is very good, but even good eyesight can be improved with this book.
It is definitely worth a try.
Highly recommended.