12.1 Definitions Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Optometrist

A

A trained professional who does eye tests

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Ophthalmologist

A

Physician who specializes in eye care

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Cornea

A

The outer surface layer of your eye that is made up of a transparent layer of tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Pupil

A

Transparent area in the centre of the eye that allows light to pass into the eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Iris

A

Circular coloured band of muscle in the eye thatcontrols the size of the pupil and the amount of light that enters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Retina

A

Inner lining at the back of the eye that acts as a projection screen for light rays entering the eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Photoreceptors

A

Cells in the retina that are sensitive to light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Rod cells

A

Cells located in the retina that help detect shapes and movement in low light situations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Cone cells

A

Photoreceptors cells in the eye that detect colour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Blind spot

A

The place where the optic nerve attaches to the retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Optic nerve

A

Nerve that connects the eye to the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Far sighted

A

People who can see far objects clearly but struggle with close objects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Near sighted

A

People who can see near objects but can’t see far objects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Astigmatism

A

The eyeball is unable to form a clear imitate because of the irregular shape of the cornea or lens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Laser eye surgery

A

A general term for several different kinds of procedures that involve correcting vision by reshaping the cornea using energy from a laser

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Colour vision deficiency

A

The ability to distinguish some colours but not others

17
Q

Sclera

A

The outermost layer and white of the eye

18
Q

Vitreous humour

A

A thick transparent liquid that fills the center of the eye

19
Q

Lens

A

Located right behind the Rios yo focus light onto the retina