Part Of The Eye

Question 1

The hole in the iris that light passes through to reach the retina

Answer 1

Pupil

Black hole

Question 2

Makes pupil large when light is dim, small when light is bright

Answer 2

Iris

Coloured part of eye

Question 3

Allows the eye to move which provides vision in various directions

Answer 3

Muscles

Red soft/hard

Question 4

Layer surrounding the eyeball which cushions and protects it from damage

Answer 4

Fat

Question 5

Carries nerve signals to the brain

Answer 5

Optic nerve

Looks like tube

Question 6

The tough cover of the eyeball that forms the white of the eye

Answer 6

Sclera

Question 7

A layer found between the sclera and the retina that contains many blood vessels which bring nutrients and oxygen to the eye and remove wastes

Answer 7

Choroid

Black lining

Question 8

The area where the image is produced and converted into nerve signals and is sensitive

Answer 8

Retina

Inner thin layer

Question 9

Found in the centre of the eye which helps maintain the eyes shape and plays a small role in focusing light on the retina

Answer 9

Vitreous humour
(Jelly like fluid
Clear lens)

Question 10

Helps focus light on the retina

Answer 10

Lens

Like contact lens

Question 11

Helps focus light on the retina

Answer 11

Cornea

Clear bubble

Question 12

Found between the cornea and the iris which maintains the shape of the front of the eye and plays a small role in focusing flight

Answer 12

Aqueous humour

Watery fluid

Question 13

In the area where the optic nerve and blood vessels connect to the retina, there are no rods or cones

Answer 13

Blind spot

Question 14

Control thickness of the lens to adjust for near and far objects

Answer 14

Ciliary muscles

Reddish band

Question 15

Attach the ciliary muscles to the lens which allow the lens to change shape and focus light on the retina

Answer 15

Suspensory ligaments

Question 16

Sensitive to the level of light and detect dim light

Answer 16

Rods

Question 17

Sensitive to colour. Detect bright light and allow us to see colour and detail

Answer 17

Cones

Question 18

Lens and cornea lose their elasticity and can’t change their shape easily

Answer 18

Presbyopia

Question 19

Doesn’t refract light enough

Answer 19

Hyperopia

Question 20

When focusing mechanisms refract light too much

Answer 20

Myopia

Question 21

Image formed in front of retina and not clear

Answer 21

Myopia

Question 22

Eyeball shortened from front to back

Answer 22

Hyperopia

Question 23

Caused when light is too long form front to back

Answer 23

Myopia

Question 24

Inability to focus on either nearby or far away objects

Answer 24

Presbyopia

Question 25

Difficulty seeing objects close up or in focus. Can see distant objects clearly

Answer 25

Hyperopia

Question 26

Can see nearby things clearly but can’t focus on distant objects

Answer 26

Myopia