Did you know


DID YOU KNOW?

Ø  The eyeball of a human weighs approximately 28 grams.

Ø  Your eyes are composed of more than 2 million working parts.

Ø  Your eyes are always the same size from birth, but your nose and ears never stop growing.

Ø  All babies are color blind when they are born.

Ø  The eye of a human can distinguish 500 shades of the gray.

Ø  Colour blind people do see color but only, certain shades of red, green, and some blues. These shades are totally different from normal people.

Ø  Color blindness is more common in males.

Ø  People generally read 25% slower from a computer screen to paper.

Ø  Men are able to read fine print better than women.

Ø  An average person blinks about 10,000 blinks per minute in an average day. This is reduced drastically in computer users.

Ø  The muscles that move the eye are the strongest in the body.

Ø  It is impossible to sneeze with your eyes open.

Ø  The older we are the lesser tears we produce.

Ø  Only 1/6th of your eye ball is exposed to outside world.

Ø  Dogs See in the Dark Four Times Better Than Humans.

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

Ø  Did you know there is a big hole in our vision?

     This “hole” is large enough to fit somebody’s head at a distance of 2 meters (6 feet).

Ø  How to locate this “hole”?

     Do a small test. Close your one eye and look straight at an object at distance with other eye. Hold one of your fingers or a pen in front of your eye at one arm distance. Now, bring your finger or pen from outside to inside (i.e. towards your nose is considered) slowly. Be sure that you don’t look at your finger or pen directly. At one point, you can see that the tip of your finger /pen will disappear suddenly and reappears as you move. This is the hole.

     It is quite natural phenomenon. The hole represents the position of optic nerve (common nerve which takes the object information from retina, back of eye to brain) at back of eye. At this particular point, we normally do not have pigments to sense the light.

Ø  Why does this hole not affecting our vision?

    The position of hole is different in both eyes. Since we have two eyes, the area which is not seen by one eye is been covered by the other. Thus we didn’t notice it in our everyday life.

 

Few eye tips

1.  Have your kids eyes checked at least once before 3 years of age.

2.  Early eye check ups can reduce many serious sight threatening issues in future.

3.  Those with diabetes, have your eyes checked at least once in 6 months.

4.  Those above 40 years of age, have your eye check up at least once in a year not only to know if any power change but also to know if you are at a risk for glaucoma. Early detection and treatment is the only way to reduce glaucomatous damage.

5.   It’s better to use protective and safety goggles for those who are working in factories or in firms where workers safety measures demands protection to their eyes from mechanical or chemical injuries.