• Question: How do we see?

    Asked by owen9 to Omar, Hannah on 1 Feb 2019.
    • Photo: Omar Mahroo

      Omar Mahroo answered on 1 Feb 2019:


      Light from objects around us gets focused by the front structures of the eye (the cornea and lens, which are see-through and have a special shape) onto the nerve layer at the back of the eye called the retina. The retina has cells that detect light and generate electrical signals in response to light. These signals are processed by other cells in the retina, and then get sent to the brain through something called the optic nerve. Areas of the brain process the signals more and give us the perception of seeing.

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