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Images 31 of 165 - Eye focusing close-up
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    Eye focusing close-up
Description:
Eyes have to adjust their lenses in order to focus. When viewing something very near, the eye's lens needs to be curved. The lens is able to change its shape because it is elastic. This ability to change shape is controlled by the ciliary muscles.
3 of 14 pages
Inside the eye
Eye focusing
Eye focusing 2
Eye on retina
Image formation
Eye focusing distant
Eye focusing close-up
Ear structure
Ear drum
Balance organs
Upright macula
Displaced macula