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How Much Do You Know About Your Eyes?
I hope you will find this quiz interesting. It may also give you some valuable information.
Eye color can change.
If your eyes are blue, you share a common ancestor with every other blue-eyed individual in the world.
Which statement below is FALSE?
Less than a tenth of your visual receptors actually detect color.
100 million “rods” help you distinguish black and white.
Seven million “cones” help you see color and detail.
Each eye contains 107 million cells and 7 million of them are light sensitive.
Eyes blink on average of 17 times per minute. This means that in the course of a year, you blink approximately how many times?
The eye muscle is the fastest reacting muscle in the body.
About what percentage of the people will need reading glasses between the ages of 43 and 50?
Age is the most common cause of cataract.
Which of these diseases can be detected during an eye exam?
Type 2 diabetes
You see with your eyes and not, as believed, with your brain.
Glaucoma could lead to blind spots in one of your eyes, which cannot be corrected.
20/20 vision is a term used to express normal visual acuity.
How long will it take to repair a corneal scratch with proper care?
Newborns don’t produce tears.
The first eyeball transplant was done in 2012.
An eyeball is about an inch (25.4mm) in diameter and weighs around 0.25 ounces (7.08grams).
What is Heterochromia?
a disease of the eyes which destroys the 'rods'
a disease of the eyes which destroys the 'cones'
a difference in coloration of the the eyes
the state of having only black and white vision
How many muscles control the movement of the eye?
How many working parts are there in an eye to make it fully functional?
Which creatures' eye corneas are most suited for replacement in eye surgeries?
(will not interfere with your quiz)
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