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15 Cards in this Set
- Front
- Back
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Cornea |
Bends light into the lens. Lies in front of the iris. It is clear. |
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Iris |
The coloured part of the eye - It contains the dilator muscles and the sphincter muscle as part of its structure. |
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Pupil |
An opening in the iris that determines the amount of light entering the eye. |
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Lens |
A flexible structure that enables light to be focused on the retina. |
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Aqueous Humour |
Lies between the cornea and the lens. It is a clear, watery fluid produced by the ciliary body to lubricate the lens and cornea. |
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Retina |
`The cells on the retina called cone cells absorb light rays and convert them into electrical signals. |
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Ciliary Body |
The lens in connected to the ciliary body. Muscles in the ciliary body change the shape of the lens. |
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Sclera |
White of the eye. It is very thick and it a tough outer layer. |
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Conjunctiva |
A membrane the covers the sclera |
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Choroid |
Has a rich blood supply and nourishes the retina. |
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Vitreous Humour |
Clear fluid between the lens and retina. |
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Eye muscles |
Enable the eye to rotate in its socket. |
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Optic Nerve |
Carries the electrical signals from the retina to the brain. |
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Short Sightedness |
Can focus on close objects, but struggle to see far away objects. This is corrected with a concave lens. |
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Long Sightedness |
Can focus on far objects, but close objects are a struggle to see. This is corrected with a convex lens. |
