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Psych 24-25 > The Eye (unit 3) > Flashcards

The Eye (unit 3) Flashcards

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1
Q

Cornea

A

Portion of the eye through which light passes (to the pupil and lens) and is bent to help provide focus

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2
Q

Pupil

A

A small adjustable opening through which light passes through. Controlled by the iris

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3
Q

Iris

A

A colored muscle surrounding the pupil that controls its size

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4
Q

Lens

A

Focuses incoming light rays onto an image on the retina on the eyeballs sensitive inner surface

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5
Q

Accommodation

A

The process by which the lens changes shape to focus near of far objects on the retina

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6
Q

Sclera

A

The outer layer of the eye that is white and smoothly transitions to the cornea

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7
Q

Astigmatism

A

A disorder of the curvature of the cornea or lens that results in difficulty seeing fine detail

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8
Q

Conjunctiva

A

A thin layer of mucous membrane that covers the outer eye and inside of eyelids for protection

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9
Q

Aqueous humor

A

Clear fluid located located near the front of the eye that supplies nutrients to the eye, removes waste, and maintains the shape of the eye

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10
Q

Cataracts

A

A condition where the lens of the eye is cloudy

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11
Q

Vitreous humor

A

A gelatinous clear fluid that fills the area behind the lens to the back of the eye

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12
Q

Retina

A

The surface on the back of the eye that is sensitive to light and contains the photoreceptors required for vision

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13
Q

Fovea

A

A small depression in the retina where retinal cone are densely located (point of central focus)

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14
Q

Retinal cones

A

The photoreceptors that allow for color vision. Require moderate to bright light to activate.

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15
Q

Retinal rods

A

The photoreceptors that allow for black and white vision. Require little light for activation, but are not detailed

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16
Q

Bipolar cell

A

Send visual info from the rods and cones to the ganglion cell

17
Q

Ganglion cell

A

Relay info from the retinal to the brain through the optic nerve

18
Q

Optic nerve

A

The bundle of ganglion axons that leave the back of the eye and send info to the brain to allow for vision

19
Q

Trichromatic theory

A

A concept about color that states that all color can be made by a mixture of red, green, and blue

20
Q

Opponent-processing theory

A

A concept about vision that states that there is are specific processes that inhibit one color and stimulate the other in the pair

21
Q

The pairs in opponent-processing theory

A

Red-green, blue-yellow, and white-black

22
Q

Monochromatism

A

A type of color blindness where the person sees everything in a shade of one color because they only have one type of cone pigmentation

23
Q

Achromatism

A

A rare type of color blindness where the person doesn’t have any retinal cones, so the only see in black, white, and grey

24
Q

Dichromatism

A

A type of color blindness where the person is missing one of the typical three cone pigments

25
Q

Trichromatism

A

Normal vision

26
Q

Synesthesia

A

A medical condition where stimulation of one sense also elicits another sense to fire

27
Q

Blind spot

A

The point where the optic nerve leaves the eye, causing a blind spot with no receptor cells

28
Q

Optic nerve

A

The bundle of ganglion axons that leave the back of the eye and send info to the brain

29
Q

Trichromatic theory

A

A concept about sight and color, that states that all colors can be made and seen a a mixture of red, green, and blue

30
Q

Opponent-processing theory

A

A concept about vision that states that there are specific processes that inhibit one color and stimulate the other in the pair

31
Q

Pairs of opponent-processing theory

A

Red/green, blue/yellow, black/white

32
Q

Monochromatism

A

A type of color blindness where the person sees everything in a shade of one color because that only have one type of cone photopigment

33
Q

Achromatism

A

A rare type of color blindness where the person doesn’t have any retinal cones so they only see in black, white and grey

34
Q

Dichromatism

A

A type of color blindness where the person is missing 1 of the typical 3 cone pigment

35
Q

Trichromatism

A

Normal vision

36
Q

Synesthesia

A

A medical condition where stimulation is one sense also elicits another sense to fire

Psych 24-25 (12 decks)

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