Colour blindness test chart, illustration. People with good colour vision can see a square and a five-pointed star, while those who have dyserythrochloropsia and those with red-green colour blindness will see neither. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CHONGQING TUMI TECHNOLOGY LTD |
Taille de l’image : | 4293 px × 3257 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |