Although here at Colour Vision Optical we don’t like the term ‘Colour Blind” and prefer iRochromatic or even Colour Vision deficient, we can’t ignore the fact that worldwide Colour Blind Awareness day happens September 6 each year. So why September 6? Firstly this is John Dalton’s birthday. Who is John Dalton? John Dalton, a chemist, […]
Blogs
In the retina at the back of the eye – the part of the eye that picks up light coming in – there are 2 types of cell, ‘rod cells’ and ‘cone cells’. Rod Cells The human eye contains about 130 million rods and the role of rod cells is to work and help us see in […]
Did you know an iRochromatic (colour blind) person sees only about 10,000 to 100,000 different hues? Those that are non-colour blind see about 1 million to 7 million different colour hues. However the human eye really only sees three colours. The retina has three types of cones: one is sensitive to the colour red, one […]
Colour vision deficit is primarily inherited to boys via the mother (refer Genes are inherited Blog ) However other factors can come into play as well which we have mentioned in previous Blogs – Colour Vision Deteriorates With Age However, there are also other factors that can affect colour vision – like smoking. We all […]
