World Sight Day is an International Day of Awareness, held annually on the second Thursday of October. This year, World Sight Day is Thursday, 13 October 2022. World Sight Day is coordinated by the International Agency for the Prevention of the Blindness (IAPB).

World Sight Day is a reminder to you, to love your eyes. It is an invitation to think about the importance of your eye health and how you can protect it and keep it healthy now and long into the future.

Eye health impacts education, employment, quality of life, poverty and so many other Sustainable Development Goals. This World Sight Day, organisations and the public should come together to encourage governments, corporations, institutions and individuals to actively call for universal access to eye health.

Here are some interesting facts about eyesight;

  • The world’s most common eye colour is brown
  • Humans can see more shades of green than any other colour
  • Chameleons can move their eyes in two directions at once
  • Dolphins can sleep with one eye open
  • Dogs cannot distinguish between red and green
  • Blind people can see their dreams as long as they weren’t born blind
  • We spend about 10% of our wake time with our eyes closed
  • The lifespan of an average eyelash is 5 months, while rest of your hair lasts 2-4 years
  • Some people have two different eye colours, a condition called heterochromia
  • The only organ more complex than the eye is the brain
  • The shark cornea is almost identical to a human cornea
  • 80% of all learning comes through the eyes
  • Your eyes can get sunburned
  • If the human eye were a digital camera, it would have 576 megapixels
  • Your eyes can distinguish approximately 10 million different colours
  • Your eyes focus on 50 different objects every second
  • Your eyes can detect a candle flame 1.7 miles away
  • Your iris has 256 unique characteristics, while your fingerprint only has 40
  • Our ears and nose grow throughout life, but eyes stay the same size from birth
  • Our eyes contain about 107 million sensitive cells
  • Birds, cats and dogs have 3 eyelids
  • Ommatophobia is a fear of the eyes
  • Contrary to urban myth, contact lenses can’t be “lost” behind the eye due to eyeball structure
  • The older we get, the less tears we produce
  • You blink about 15-20 times in a minute
  • Only one sixth of your eyeball is visible
  • All babies are colour blind at birth

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