Some Interesting Facts About Eyes:

•  The entire length of all the eyelashes shed by a human in their life is over 98 feet with each eye lash having a life span of about 5 months.
  

• Your eyeballs stay the same size from birth to death, while your nose and ears continue to grow.
  

• Only 1/6 of the human eyeball is exposed
  

• The human eye weights approximately just under an ounce and is about an inch across.
  

• A fingerprint has 40 unique characteristics, but an iris has 256, a reason retina scans are increasingly being used for security purposes.
  

• People who are blind can see their dreams if they weren’t born blind.
  

• Seeing is such a big part of everyday life that it requires about half of the brain to get involved.
  

• Newborns don’t produce tears. They make crying sounds, but the tears don’t start flowing until they are about 4-13 weeks old.
  

• Around the world, about 39 million people are blind and roughly 6 times that many have some kind of vision impairment.
  

• Your eye is the fastest muscle in your body – hence why when something happens quickly, we say ‘in the blink of an eye!’
  

• All babies are colour blind at birth
  

•  Our eyes close automatically to protect us from perceived dangers.
  

• Dolphins sleep with one eye open.