Eye Openers

Did you know that…?

• the average blink takes 1/3 of a second.

• Seeing is so important that it takes up more than 50% of the brain’s functionality.

• Newborns don’t shed tears, though they do know how to cry.

• You blink about 15-20 times in a minute.

• The most active muscles in your body are in your eyes.

• Your eyes can get sunburned.

• Blue eyed people are more tolerant of alcohol and less tolerant of the sun

• If the human eye were a digital camera it would have 576 megapixels.

• We spend about 10% of our wake time with our eyes closed.

• An ostrich’s eye is bigger than its brain.

• Chameleons can move their eyes in two directions at once.

• A single scallop can possess over a hundred eyes

• Your eyes contain around 107 million light sensitive cells.

• Dolphins can sleep with one eye open.

• Birds, cats and dogs have three eyelids.

• Yes, you can sneeze with your eyes open and no, your eyes won’t fall out.

• Ommatophobia is the fear of eyes.

• Humans can see more shades of green than any other colour.

• The world’s most common eye colour is brown.

• Dogs cannot distinguish between red and green.

• The lifespan of the average eyelash is 5 months, the rest of your hair will last 2-4 years.

• The eye has over 2 million moving parts.

• Your eyes contain 7 million cones which help you see colour and detail and 100 million cells called rods which help you to see better in the dark.

From an article published by the Canadian Association of Optometrists.