Colour blindness test chart, illustration. People with good colour vision can see the number 56, while those who have tritanopia or abnormal purple vision cannot. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CHONGQING TUMI TECHNOLOGY LTD |
Bildgröße: | 4170 px × 3353 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |