Vistabona

As I told in the paragraph of sun glasses, I don´t advise using them for driving, skiing or any fast activity, because it is not possible to have visual fields with them, nor in places with low light. I´m not including TV or computers because they have their own light and it goes directly to the glasses. Even in a room with low light you can watch television but it is recommended, at least, that there is a soft light

If anyone is interested in a training program, because it is safer for him/her, there is one person who wrote a book about reticular glasses, which is very comprehensive; his name is “Wolfgang Hätscher-Rosenbauer". Until now it has no official translation to Spanish language, the name of the book is: Grid glasses/Pinhole.