Color Blindness Test: All Plates With Comments & Results , Ishihara Plates , Optometry Color Deficiency Test , Vision Testing Charts, Ishihara Plates ... All Forms of Color, ophthalmology charts Paperback – Large Print, 1 Aug. 2021

Got this for my son who is colourblind (deuteranopia) as he has used these plates at the opticians and wanted to look at them more closely.It's a good book except for a printing error. Plates 14 and 15 are the same image when it is supposed to be two different images. Plate 15 is supposed to be a 45 but it is a 5 (the same image as plate 14). My son spotted this mistake as it is a plate that only colourblind people can see.

Needed to pass a colour perception test. This helped me - the actual test is on much higher quality paper and easier to see but this book did its job of practicing to be able to distinguish