Vision Flashcards

1
Q

Cornea

A

Clear boundary in front.
Light passes through.
Contains aqueous humor

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2
Q

Iris

A

Eye color

Forms boundary of pupil

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3
Q

Lens are suspended by what two things?

A

Zonule Fibers and Ciliary Muscle

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4
Q

What percentage makes up the posterior chamber?

A

80 Percent

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5
Q

Sclera

A

Tough white connective tissue

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6
Q

Fovea

A

Forms the focal point for the lens

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7
Q

Optic Nerve

A

Carries visual information to the rest of the brain

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8
Q

Optic nerve exits the eye through the ?

A

Optic Disk

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9
Q

What does the optic nerve penetrate?

A

Sclera

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10
Q

What is the job of the cornea, pupil and lens?

A

Formation of images on the retina

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11
Q

What is primarily responsible for focus of light? It has a refractive index to bend light to focus on the retina. Focusing images to the retina.

A

Cornea

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12
Q

What component constricts?

A

Pupil

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13
Q

What are some effects of the pupil constricting?

A

Reduces spherical and chromatic aberration
Increases depth of field
Limits amount of light (can reduce acuity)

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14
Q

Spherical and chromatic aberration?

A

Light goes through the center rather than edges.

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15
Q

What component involves accommodation?

A

Lens

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16
Q

The retina develops outpocketing (part) of the?

A

Diencephalon

17
Q

What is part of the diencephalon?

A

Optic vesicle