Fill in the answers below to see if you have signs of dyslexia. Our dyslexia screener is not a valid substitute for a test by a professional. If you believe you might have dyslexia symptoms, please consult a dyslexia specialist. May 25, · How does dyslexia affect adults? Dyslexia is the inability to relate the sounds of words with the letters that create the words. It’s Author: Diana Wells.