When I began teaching in the late 1960's, even most college education professors knew nothing about dyslexia. When we had a student with a severe reading problem in my community whose parents who would not give up on him, I learned quickly. I was aided by a professor in my state who had done a lot of research.
Over the last several decades tremendous scientific advances have been made in understanding the cause, symptoms, and teaching students with dyslexia. However, across the nation, educators have been in denial: we have not been identifying students with dyslexia. We have also failed to apply known techniques in addressing dyslexia. Sadly, many parents don't even discover that their children have dyslexia until after years of struggles, trials and tribulations. Some never do. Students face the misery or failure early in their lives. Their motivation to learn is snuffed out as they are deprived of self-esteem. They are often labeled as lazy or disruptive.
The long term effects of unaddressed dyslexia on young adults include school failure, depression, increased risk of suicide, delinquency, and lack of gainful employment.
If dyslexia is address appropriately these students can overcome their disability and can become super-star learners.