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How do glasses improve your sight?


This week we have a TPL Kids website visitor who wears eyeglasses (or knows someone who does) and wondered... how do eyeglasses improve your sight. 


For this wonder, we found an answer on the Australian Broadcasting Corporation website:

Our eyes let us see because light enters each eye, and the eye then creates a message that goes to the brain.

The eyeball itself doesn’t actually “see” – the brain sees. The eyeballs just take pictures, like two little cameras. To see properly, each eyeball needs to send the light that enters it onto a very exact spot inside the eyeball, called the retina. If the light falls onto the wrong place, your vision will be blurry.

So if you find yourself with eyeglasses (or not) consider how the marvel of lenses has helped many people see clearly. 

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