Did you know that after your brain, the human eye is one of the most complex organs in your body?
Optometry Australia, the professional body for optometrists, reveals that there are hundreds of interesting facts about the human eye – everything from their development in a basic form in animals some 550 million years ago, to the fact that the most common eye colour in the world is brown.
Here are its top facts:
- We blink around 10-15 times a minute and around 6.3 million times a year.
- Our eyeballs continue to grow in size from birth.
- An eye is composed of more than two million working parts including over one million nerve fibres which connect each eye to the brain.
- We might pump iron, compete in triathlons and climb mountains but some of the most active muscles in our body are those that control our eyes.
- Eyes don’t show signs of many eye diseases – such as glaucoma and macular degeneration – until it is too late and their effects cannot be reversed.
- Our retinas actually perceive the world upside down, our brain that flips the image the right way.
To protect these incredibly precious organs, Optometry Australia recommends regular eye examinations throughout life.