Green or Red documents the breakthrough in treating colour blindness. It is a comprehensive guidebook for any individual looking for answers on colour vision deficiencies. The authors of this book are allopathic doctors and behavioural optometrists who have developed a successful treatment for colour blindness after rigorous research of 15 years. The treatment methods devised by them are shared in the book, keeping in mind the concerns of all people dealing with colour vision deficiency in day-to-day life. The book consists of progressive research findings of the authors that have proven to be a boon in treating thousands of patients. The authors have also shared real-life patient success stories from all walks of life which will prove to be valuable for colour- blind people who are unable to pursue their dreams. The authors strongly believe that their combination of treatment procedures applied to treat colour vision deficiency would be an eye-opener to many scientists and medical research enthusiasts.