Random Facts: Eyes

By far the most common eye colour in the world is brown but in the UK blue is now most common.

When awake, you blink about 12 times a minute on average which is over four million blinks a year.

Percy Shaw of Halifax, UK,  invented the cat’s eye road safety device in 1933 after being inspired by light reflections in a real cat’s eye. There are now around 500 million cat’s eyes on British roads.

Heterochromia is the name for the condition of having two eyes of different colours.

The animal with the largest eyes is the colossal squid. In 2008 one colossal squid eye was measured at 11 inches across.

Your eyeballs stay the same size all your life, from birth to death.