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Flashcards in Vision Deck (20)
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1

Rod cells are located in greater density at _____.

Around the edge of fovea

2

Night vision is best mediated by the _____ cell

Rod, they are best equipped for vision at night

3

The most common vision receptor cells are _____.

Rods (most plentiful receptor cells in the retina)

4

Which retinal cells are designed to encode vision in conditioned of bright lights?

Cones

5

_____ cells are found in greater density in the fovea

Cones

6

Colour is transduced by the _____ cells

Cones. They are specialised to transduce color.

7

The flow of information in the retina moves from _____ on its way to the optic nerve.

Receptor cells to bipolar cells to ganglion cells

8

What is the purpose of retina?

It compresses, encodes, integrates, and converges visual information

9

The optic nerves leaves the back of the eyes at a spot called the _____.

Optic disk

10

A blind spot in the retina is formed by the _____

Exiting optic nerve. It creates a blindspot by interrupting the receptor cell layer of the retina

11

The _____ and _____ regulates directly the amount of light that enters the eye.

Pupil and Iris

12

_____ involves the adjustment of the size and shape of the lens to focus far and near objects on the retina.

Accommodation

13

When light enters the eye, it first passes through the _____.

Cornea

14

The central region of the retina that provides the most acute vision is the _____

Fovea. It provides the highest resolution of visual processing in the retina

15

What is a blind spot? Describe.

A blind spot is located at the back of the eye, formed by the optic disk. It is caused by the absence of visual receptor cells and the collection of axons leaving the eye

16

Color is to wavelength as saturation is to _____.

Purity.

17

Muscles that move the eyes are important for ____.

Orienting to and processing visual events.

18

What does optic nerves do?

It conveys visual information to the visual pathways

19

Where is the lens located and list down its purposes.

The lens is located behind the cornea, focuses and inverts a visual image on the retina at the back of the eye.

*may become cloudy with age

20

The blind spot of the eye is adjusted for by the ____.

Visual Cortex