Vision Flashcards by Amie Acevedo

Q

Brightness

A

Amplitude. High/low wave is.

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Q

Rods

A

Night. Black and white

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Q

Color (hue)

A

Length of wave. Long @ red end. Shirt @ blue end.

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Q

Saturation

A

Purity of color

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Q

Cornea

A

Bend light to focus image in retina.

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Q

Pupil

A

Iris opening change size for amount of light

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Q

Iris

A

Muscle control

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Q

Lens

A

Changes shape to bring objects into focus

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Q

Retina

A

Photoreceptors cells

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Q

Blind spot

A

Optic nerve leaves eye. No photo receptor cells

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Q

Optical nerve

A

Visual info. To brain.

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Q

Fovea

A

Central area. Greatest density of photo receptor cells

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Q

Dark adaption

A

Recovery to sensitivity from light to dark.

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Q

Light adaption

A

Recovery of eye sensitivity from dark to light.

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Q

Trichromatic theory

A

Propose 3 types if cones: red, blue, green

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Q

After image

A

Image occur when visual sensation persists brief time after

Q

Color blindness

A

Defective cones on retina of eye

Q

Opponent process theory

A

Sensory receptor cells in pairs