Our eye

 

1)



2) Eye contains cornea through which light enters into our eyes.


3) Our eye has pupils, the size of pupil can be change by muscle, after cornea, light enters into pupils and then to the lens.


4) At lens, the light converses incoming lights in a suitable manner to the retina. The size of lens changes by the muscles connected to the lens.


5) When convergent light reaches the retina, where nerve cells converts optical signals into electrical signals and they transfers these signals to the brain.