Question

HIGH VOLTAGE QUESTION........
ANSWER---THIS );
HOW MUCH MEGAPIXEL EXIST IN HUMAN EYE.?
AND HOW MUCH WE USED APPROXIMATELY...??

Answer 1

576 megapixels are there in a human eye...

Answer 2

576 megapixelsThe average human retina has five million cone receptors on it. Since the cones are responsible for colour vision, you might suppose that this equates to a five megapixel equivilant for the human eye. 
 This gives an equivilant pixel size of 0.3 arc-minutes. If you take a conservative 120 degrees as your horizontal field of view and 60 degrees in the vertical plane, this translates to ...

576 megapixels of available image data.