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

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