Glasses or contact lenses will help children see the board better, and they may help children succeed in school if they have difficulty seeing. Ruling out simple refractive errors is the first step, but they're not the cause of all learning problems. Another reason for school difficulty is a learning disability. Learning disabilities are more than dyslexia, a language-based learning disability that frequently causes children to reverse letters or words. Learning problems affect reading, writing, speech, attention span, comprehension and social interaction, much more than an easily corrected refractive error.
Vision is an important part of learning.
Almost 80 percent of what a child learns throughout his educational career comes to him visually. Visual perception, which includes understanding what you see, identifying it, judging its importance and linking it to previously stored information, as well as eye-hand coordination. Visual memory is another part of visual perception. This entails recognizing words that you have seen previously, and using the eyes and brain together to form a mental picture of the words you see. You also form a picture of a cat in your brain.