What is colour blindness? Colour blindness affects approximately 1 in 12 men (8%) and 1 in 200 women in the world. Worldwide, there are approximately 300 million people with colour blindness. There ar...

You may recognize this word from previous eye examinations, but very few actually understand what it means, so I will hopefully be able to demystify the word for you. Astigmatism is the name given whe...