Amazing Eye Facts!

Our Eyes in Facts and Figures
• The human eye can distinguish between 500 shades of
grey
• The human eye can detect 10 million different colours
• The clear cornea at the front of the eye is the only living
tissue in the human body that does not contain any blood
vessels
• The eye is the only part of the human body that can
function at 100% ability at any moment without rest
• Eyes are composed of more than 2 million working
parts
• Under the right conditions the eye can discern candle light
at a distance of 14 miles
• Men can read smaller print than women (women can hear
better!)
• Eyes are the most complex organ apart from your brain
• It is impossible to sneeze with your eyes open
• Smoking reduces your night vision
• Your visual field increases by 10% in the dark because your
pupils are larger
• If you go blind in one eye you only loose around 1/5 of
your total vision
• The average blink lasts 300-400 milliseconds
• The adult eye contains about 12 million light sensitive
cells
Children
• Babies' eyes don't produce any tears until they are about
6-8 weeks old
• Babies can't blink before the age of 6 months
• All babies are born colour blind
• It takes some children up to 3 years to attain their final
eye colour
Lifetime
• Your eyes blink over 10 million times a year
• Eyes contribute 85% towards your total knowledge
• 80% of our memories are made up of visual images
• In a normal life span your eyes will see almost 24 million
images of the world around you
• Your eyelashes have an average life span of 5 months
• Your eyes will never wear out
• We shed over 30 million eyelashes over our lifetime
• The lens inside the eye continues to grow throughout
life
Make sure you look after this amazing organ and have regular eye tests at a
qualified opticians.