Activity Sheet 1: How the Eyes Work
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Below is a drawing of the eye with some of the more important parts numbered. Write the names of the parts of the eye and their functions in the proper boxes. The clue list is there to help you.
(Move your mouse over the illustration to see a colorized version.)
| Part Names | Functions | Answers |
|---|---|---|
| Lens | Contains cells that detect light | Cornea. Outermost transparent layer of eye. Begins focusing process. |
| Retina | Opening to the inner eye | Pupil. Opening to the inner eye. |
| Ciliary Muscle | Controls the size of the pupil | Iris. Controls size of pupil. |
| Optic Nerve | Focuses image of object | Lens. Focuses image of object (on retina). |
| Pupil | Controls shape of lens | Retina. Contains cells that detect light. |
| Cornea | Transmits information to brain | Ciliary muscle. Controls shape of the eye. |
| Iris | Outermost transparent layer of eye, begins focusing process | Optic Nerve. Transmits information to the brain. |
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