I trained at the Hornsby International Dyslexia Centre, now merged with Dyslexia Action.  I have tutored dyslexic children 1:1 since 2000 using a sequential, structured multi-sensory approach based on the Orton Gillingham  method.  It is my belief that it is never too late for a dyslexia intervention and have successfully taught young children, through to adults with excellent results.  This includes teenagers who had been told to 'give up trying to learn to read and use reading software and a scribe instead'.  Twice  weekly  lessons are ideal, but I have had success with weekly lessons.