Wide eyes develop speed reading.

Our eyes have their clearest vision in the central zone of view.

Everything that lies outside this central zone is seen as a frog would see it.

This broad field of vision makes the searching process shorter.

It is possible to widen our field and quicken our vision by using "Shultz tables".

Work with Shultz tables develops three-dimensional (parallel) attention.

The symbols can be perceived as one picture, (non- consecutively).