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2023 Eye Practice HW

Total questions: 25

Worksheet time: 46mins

Name
Class
Date
1.

What does the optic nerve do?

a)

transmit impulses from retina to brain

b)

helps the eye focus

c)

transmits light rays to retina

d)

absorbs light rays

2.

What does the iris do?

a)

transmits light rays to retina

b)

helps the eye focus

c)

sends messages to the brain

d)

a muscle that regulates how much light enters the eye

3.

This structure is the back of the eye and it sends images to the optic nerve.

a)

Cornea

b)

Lens

c)

Retina

d)

Pupil

4.

This structure is what makes animals look as though their eyes are glowing at night when light shines into their eyes

a)

the tapetum

b)

the iris

c)

the retina

d)

the pupil

5.

The thick, tough, white outer covering of the eyeball is called the __________________.

a)

sclera

b)

lens

c)

pupil

d)

cornea

6.

What part of the eye is this (the muscle that pulls the lens)?

a)
iris
b)
sclera
c)
ciliary body
d)
cornea
7.
What part of the eye is this (hint: contains the highest concentration of rods and cones)
a)
choroid
b)
fovea centralis
c)
optic nerve
d)
ciliary body
8.

A clear fluid that helps the cornea keep its rounded shape, found in the anterior chamber

a)

aqueous humor

b)

choroid

c)

cornea

d)

optic nerve

9.

supplies blood to the eye

a)

sclera

b)

retina

c)

choroid

d)

pupil

10.

Which type of vision allows you to see nearby objects clearly but distant objects appear blurry?

a)

farsighted

b)

nearsighted

11.
 ________ are light-sensitive cells in the retina that help us see color.
a)
 Rods 
b)
Cones 
c)
Image 
d)
Bars 
12.

 ________ are light-sensitive cells in the retina that show black and white as well as seeing the size and shape of image.  

a)
Cones
b)
Rods 
c)
Bars
d)
Corneas 
13.

This vision problem results in distorted vision and trouble driving at night.

a)

Astigmatism

b)

Nearsightedness

c)

Farsightedness

d)

Cataracts

14.

This vision problem is caused by a clouding in the lens.

a)

Astigmatism

b)

Nearsightedness

c)

Farsightedness

d)

Cataracts

15.

The hole in the eye through which light rays pass:

a)

cornea

b)

iris

c)

pupil

d)

conjunctiva

16.

Reorder the following in order of light entering the eye.

a)

Cornea

b)

Pupil

c)

Lens

d)

Retina

e)

Optic Nerve

1)
2)
3)
4)
5)
17.
What is letter B
a)
Optic nerve
b)
Lens
c)
Cornea
d)
Retina
18.
What is letter E?
a)
Vitreous humor
b)
Retina
c)
Cornea
d)
Optic nerve
19.
What is letter F?
a)
Retina
b)
Pupil
c)
Vitreous humor
d)
Iris
20.
What is letter G?
a)
Sclera
b)
Retina
c)
Lens
d)
Vitreous humor
21.
What is letter I?
a)
Cornea
b)
Lens
c)
Vitreous humor
d)
Optic nerve
22.
Why does your pupil increase in size when you enter a dark room?
a)
To protect the eye
b)
to allow more light to enter the  eye
c)
to allow less light to enter the eye
d)
to look like a  pirate
23.

The star is pointing to which part of the eye?

a)

choroid

b)

ciliary muscle

c)

optic nerve

d)

sclera

24.

Found in the back of the eye- light sensitive. Contains rods and cones

a)

vitreous humor

b)

eye back

c)

muscle

d)

retina

25.

What is the "job" of this jelly like substance

a)

Maintains shape of eye

b)

To cleanse the eye

c)

to focus images

d)

to keep all eye parts in place