When a baby is born, he cannot see far, nor can he see colour. This develops slowly. There is no control of the eye muscles. This is why babies can appear cross-eyed. Full eye control is developed around the age of 8 years old, if properly trained.
Children can differentiate colour, see different distances, coordinate use of both eyes, which is also the same skills needed for reading. Children are not given enough opportunities to practice different eye movements when they watch a screen a great deal.
In the current educational system, children’s eye muscles are not examined prior to being taught to read. When you ask children to read when the eyes are not ready, the child may become afraid of failure. He does his very best, but it just does not work because the body is not yet developed enough.
When there is too much strain on the eye muscles, you get watery eyes and headaches, it is important that this development is slow and gets daily attention.
-cannot read well
-cannot read for a long time
-Writing from schoolboard to notebook is poor