11.2 Eyeball and Seeing

Question 1

-ar

Answer 1

pertaining to

Question 2

a-

Answer 2

without

Question 3

-vascul-

Answer 3

blood, vessel

Question 4

a-vascul-ar

Answer 4

without a blood supply

Question 5

con-

Answer 5

with, together

Question 6

-strict

Answer 6

narrow

Question 7

con-strict

Answer 7

become or make narrow

Question 8

-ion

Answer 8

action, condition

Question 9

con-strict-ion

Answer 9

narrowed portion of a structure

Question 10

dilate

Answer 10

to perform or undergo dilation

Question 11

dilat-ion

Answer 11

stretching or enlarging an opening or a structure

Question 12

iris

Answer 12

greek - diaphragm

colored portion of eye with pupil in its center

Question 13

lens

Answer 13

latin - lentil shape

transparent refractive structure behind the iris

Question 14

-opia

Answer 14

sight

Question 15

presby

Answer 15

old man

Question 16

presby-opia

Answer 16

difficulty in nearsighted vision occurring in middle and old age

Question 17

pupil

Answer 17

opening in center of the iris that allows light to reach the lens

Question 18

pupill-ary

Answer 18

pertaining to pupil

Question 19

refract

Answer 19

latin - break up

bend or change direction of a ray or light

Question 20

refract-

Answer 20

bend

Question 21

refract-ion

Answer 21

bending of light

Question 22

retina

Answer 22

latin - net

light-sensitive innermost later of eyeball

Question 23

retin-al

Answer 23

pertaining to the retina

Question 24

sclera

Answer 24

greek - hard

fibrous outer covering of eyeball and white of the eye

Question 25

scler-

Answer 25

hardness, white of the eye

Question 26

scler-al

Answer 26

pertaining to the scleral

Question 27

scler-itis

Answer 27

inflammation of the sclera

Question 28

choroid

Answer 28

greek - membrane

region of retina and uvea

Question 29

-is

Answer 29

pertaining to

Question 30

central-

Answer 30

center

Question 31

fovea central-is

Answer 31

small pit in center of mascula that has the highest visual acuity

Question 32

macula

Answer 32

small spot

Question 33

lutea

Answer 33

yello

Question 34

macula lutea

Answer 34

yellowish spot on back of retina; contains fovea

Question 35

optic

Answer 35

eye

pertaining to eye

Question 36

optic-al

Answer 36

pertaining to vision

Question 37

-or

Answer 37

that which does something

Question 38

phot/o

Answer 38

light

Question 39

-recept-

Answer 39

receive

Question 40

phot/o-recept-or

Answer 40

photoreceptor cell receives light and converts it into electrical impulses

Question 41

uvea

Answer 41

vascular layer

middle coat of eyeball; includes iris, cillary body, choroid

Question 42

uve-

Answer 42

uvea

Question 43

uve-itis

Answer 43

inflammation of uvea

Question 44

visual acuity

Answer 44

sharpness and clearness of vision

Question 45

-ism

Answer 45

process

Question 46

a-

Answer 46

without

Question 47

-stigmat-

Answer 47

focus

Question 48

a-stigmat-ism

Answer 48

inability to focus light rays that enter eye in different planes

Question 49

concave

Answer 49

concavus arched

having a hallowed surface

Question 50

convex

Answer 50

surface that is evenly curved outward

Question 51

foramen

Answer 51

hole; opening through a structure

Question 52

myop-

Answer 52

to blink

Question 53

-opia

Answer 53

sight