AN EYE WORKS LIKE A CAMERA THAT TAKES PICTURES OF THE WORLD AROUND US.without them ,it would become very difficult for us ,to do even a small task.
When we look an object ,light rays enter the eye through the pupil.A colored part in an eye ,called Iris ,controlled the amount of light entering the into the eyes.When the light falls on a curved transparent lens of the eye ,it bend the light so that a clear picture is formed at the back of the eye on the area called retina .As our vision changes ,our brain makes a series of pictures,hundreds of times a second .The nerves in brain make sense of pictures-like change in colour,finding edges ,recognizing shades and recognizing shapes of the objects.There are three types of colour sensitive cells in our eyes that recognize red,blue,and green.All other colors are formed with the combination of these colours.
FACTS-
When we look an object ,light rays enter the eye through the pupil.A colored part in an eye ,called Iris ,controlled the amount of light entering the into the eyes.When the light falls on a curved transparent lens of the eye ,it bend the light so that a clear picture is formed at the back of the eye on the area called retina .As our vision changes ,our brain makes a series of pictures,hundreds of times a second .The nerves in brain make sense of pictures-like change in colour,finding edges ,recognizing shades and recognizing shapes of the objects.There are three types of colour sensitive cells in our eyes that recognize red,blue,and green.All other colors are formed with the combination of these colours.
FACTS-
- The average person blinks about 12 times a minute.
- An eagle can see a rabbit 1 mile away.
- HUMAN EYE
- People who are colour blind can not see things in as many colors as people who have normal vision,and they can not see certain colors like red, green and some blues.
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