HUMAN EYE OPTICS

Question 1

what is a fibre optic

Answer 1

thin transparent glass tube that can transmit light around corners.

Question 2

what is the cornea

Answer 2

transparent layers of tissue over eyes that protects your eye and refracts light into your eye- it is a thick as a credit card

Question 3

what is the pupil

Answer 3

the dark hole in your eye that lets light to pass

Question 4

iris

Answer 4

the circular muscle around the pupil that controls the amount of light coming through the pupil, it gives eye color

Question 5

photoreceptors

Answer 5

photoreceptors absorb light rays so you can see

in the retina

Question 6

retina

Answer 6

the inner lining of the eye that acts as a projection screen for light rays entering your eye

Question 7

lens

Answer 7

your lens allows you to focus on objects that are near or far so you can see the clearly, it is able to do this because it is attached to a circle muscle that can change its shape

Question 8

what is the Rod cells

What is the cone cells

Answer 8

Rod cells allows us to see and detect shapes and movement without light
cone cells are used to detect color, they detect the primary colors RGB

Question 9

light enters our eye in this order

Answer 9

Conjunctiva 
Cornea
Pupil
Lens
Vitreous Humor
Retina

Question 10

blind spot

Answer 10

the blind spot has no photoreceptors and cannot detect light, it is where your optic nerve attaches to your retina

Question 11

Ciliary muscle

Answer 11

The ciliary muscle controls the viewing of objects at diff distances.

Question 12

Optical nerve

Answer 12

the nerve where your brain attaches to your eye