Anatomy of the eye Flashcards

1
Q

How many layers are in the eye?

A

5

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2
Q

What is perception

A

based off neural firing
is different for everyone

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3
Q

visual stimuli and visual receptors

A

human visual range is extremely narrow
visual stimuli is inherently ambiguous

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4
Q

visual field

A

what we see in front of us (left and right)

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5
Q

visual sensitivity

A

the neurons ability to detect levels of light
(more sensitive can detect in dim light)

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6
Q

visual acuity

A

high resolution (due to cones)

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7
Q

visual transduction

A

the conversion of light into neural signals

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8
Q

what is an advantage of having one eye on each side of your head?

A

larger visual field

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9
Q

what is an advantage of having both eyes in front?

A

higher visual acuity

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10
Q

Binocular disparity

A

the difference between 2 retinal images helps create 3D and depth perception

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11
Q

Pupil

A

allow light to enter

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12
Q

iris

A

the muscle that give eye color and regulate the size of pupil (dilation)

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13
Q

lens

A

accommodates by changing width allowing light to be focused for the retina

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14
Q

retina

A

biological receptors (light rays converted into neural signals)

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15
Q

fovea

A

located in the back of the eye, highest visual aquity, center of field of vision.

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16
Q

macula

A

contain fovea

17
Q

blind spot

A

no receptors in the blind spot (only has the axons from retinal cells)

18
Q

optic nerve

A

carries the signal to the brain