Eye Terminology

Question 1

Sclera

Answer 1

tougher outer coating of the eye

Question 2

Retina

Answer 2

layer of cells that detect light stimulus. Containers rod and cone cels.

Question 3

Optic nerve

Answer 3

the nerve that transports the stimulus detected by the retina to the brain

Question 4

cornea

Answer 4

the transparent layer at the front of the eye responsible for the majority of light refraction

Question 5

conjunctiva

Answer 5

the protective outer coating of the eye preventing damage to the cornea

Question 6

iris

Answer 6

the coloured muscle that controls the size of the pupil

Question 7

circular muscle

Answer 7

contract to constrict the pupil

Question 8

radial muscle

Answer 8

contract to dilate the pupil

Question 9

Pupil

Answer 9

the gap in the centre of the eye that allows light to enter and be detected by the photoreceptors in the retina

Question 10

lens

Answer 10

the transparent structure that alters in shape to focus the light

Question 11

suspensory ligament

Answer 11

the fibres that attach the lens and the ciliary muscle

Question 12

ciliary muscle

Answer 12

muscles around the edge of the iris that contracts to make the suspensores ligament slacken and vice versa

Question 13

refracted

Answer 13

when light is bent