THINGS TO KNOW
The ordinary reader becomes her own reading teacher. She automatically compares each word she/he reads with its stored neural model. If it is a perfect match, she/he rapidly identifies the word. If her/his model is not quite an exact replica, she/he corrects it and after a few readings, she/he has a perfect fit. That word becomes part of her/his internal dictionary of words at a glance.
A dyslexic reader reads very little, which leads to faulty, inaccurate, or incomplete neural models of words. The "holes" are never filled in and she/he never has the number of encounters reading the word correctly that is necessary in order to develop a stable, accurate representation. As a result, a dyslexic reader's internal lexicon (dictionary) is a mighty thin one.