The Structure of the Eye

Question 1

Sclera

Answer 1

wraps around the eye; protects the eye from injuries and helps to maintain the shape

Question 2

Cornea

Answer 2

Outer covering of the eye; protects the structures INSIDE the eye.

Question 3

Retina

Answer 3

Near optic nerve; receives light.

Question 4

Rods

Answer 4

Can only see grey tones (black and white).

Question 5

Cones

Answer 5

Can see colors. example: The rainbow

Question 6

Fovea Centralis

Answer 6

Makes you see best and is located on the center of the Macula Lutea (part of RETINA)

Question 7

Iris

Answer 7

What makes your eye color

Question 8

Ciliary Body

Answer 8

Behind the Iris; changes your eye so it can focus.

Question 9

Optic Nerve

Answer 9

Behind the eye; tells the brain what you are seeing. Basically connects the eye to brain.

Question 10

Aqueous Humor

Answer 10

Keeps the eye inflated.

Question 11

Vitreous Humor

Answer 11

The space between the lens and the retina.

Question 12

Lens

Answer 12

Focus; makes an image

Question 13

Choroid

Answer 13

Found in the brain ventricles; produces fluid

Question 14

What are the layers of the eye?

Answer 14

Sclera, Cornea, Choroid, Ciliary Body, Iris, Pupil

Question 15

Tarsal Gland

Answer 15

Helps to prevent eye tares; produces and oily film on eye

Question 16

Ciliary Gland

Answer 16

Sweat gland; on base of eyelashes

Question 17

Conjunctiva

Answer 17

Covers the inside of eyelid and the sclera; if infected PINK EYE

Question 18

Lacrimal Apparatus

Answer 18

Makes tears

Question 19

Eye Muscles (6)

Answer 19

1. Lateral Rectus
2. Medial Rectus
3. Inferior Rectus
4. Superior Rectus
5. Superior Oblique
6. Inferior Oblique

Question 20

Accommodation

Answer 20

The eyes ability to be able to bend and flex.

Question 21

Emmetropic

Answer 21

The “perfect eye” 20/20 vision

Question 22

Cataracts

Answer 22

Your lens becomes hard and you can end up BLIND

Question 23

Nearsighted (MYOPIA)

Answer 23

Needs a negative lens to be corrected. Cannot see FAR AWAY

Question 24

Farsighted (HYPEROPIA)

Answer 24

Needs a + lens to be corrected. Can’t see CLOSE up.

Question 25

Glaucoma

Answer 25

Nerve connecting the brain is damaged; causing blindness

Question 26

How is an image processed?

Answer 26

It is burned into the retina and the optic nerve sends the information up to the brain

Question 27

Tampetum

Answer 27

Reflective layer of Choroid. Think of a deer’s eyes at night, the glow and reflect light.