Eye Flashcards

1
Q

Cornea function

A

Transparent, dome shaped. It is a powerful refracting surface, it provides 2/3 of the eyes focusing power

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2
Q

Pupil function

A

Hole in the centre of the eye where light passes through

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3
Q

Conjunctiva function

A

Thin transparent tissue that covers the visible part of the eye. It has blood vessels that are nearly invisible to us. Protective layer

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4
Q

Lens function

A

Focus the light onto the retina. It is attached by suspensor ligaments

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5
Q

Iris function

A

Coloured part that controls the amount of light that enters the eye. It has tiny muscles that make it dilate and constrict the pupil size.

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6
Q

Retina function

A

Light sensitive part of the eye, captures light rays that enter the eye (rods and cones)

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7
Q

Humour function

A

Fluid like gel that fills the eye, keeps the shape. Also provides nourishment (aqueous and vitreous)

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8
Q

Fovea function

A

Very centre of macula, where light must fall to see fine details like reading or recognising faces.

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9
Q

Macula function

A

Located in the centre of the retina. Small and highly sensitive, crucial for central vision

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10
Q

Optic nerve

A

Transmits electrical impulses to the brain. Connects to the macula. Has no rods or cones (is a blind spot)

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