- THE R.I.D.L. DYSLEXIA CENTRE The RIDL Dyslexia Centre in Heywood offers computerised remedial tuition for all ages and abilities, whether diagnosed dyslexic or not. The system enables all people to learn how to read and spell effectively using unique computer software especially designed for dyslexia. Where When What Contacts Help & advice The Heywood Centre Assessment Tuition Where is the ...www.heywood.org.uk/ridl.htm