This page contains polls dedicated to How do my eyes work?.
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Your eyes are tough balls of tissue that contain clear jelly. They work by producing an image that is transmitted to your brain as 'sight'. A transparent layer, called the cornea, covers the front of each eye. Below this is the iris, which is a flattened ring of muscle surrounding the pupil.

Light enters the eyeball through the pupil and passes to the lens behind. As the light rays pass through the lens they are bent and focused to form a clear image on the retina. The retina detects this ima read more...

Tags: eyes, glasses, brain, nerves

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