The colour receptors at the back of the eye are stimulated by certain wavelengths of light which are then translated by our brains into a visual representation of the colours and locations, in colour-blindness the distinction between different colours isn’t marked enough to easily tell them apart so red and green may look very similar to someone so two objects one red and one green next to each other the person may not be able to tell where one object stops and the other starts. https://youtu.be/IhP91B3_A20
Latest Answers