1
Q
anter/o-
A
before; front
2
Q
aque/o-
A
watery substance
3
Q
choroid/o-
A
choroid (middle layer of eye)
4
Q
conjunctiv/o-
A
conjunctiva
5
Q
corne/o-
A
cornea
6
Q
kerat/o-
A
cornea; hard, fibrous protein
7
Q
ocul/o-
A
eye
8
Q
mot/o-
A
movement
9
Q
opt/o-
A
eye; vision
10
Q
ophthalm/o-
A
eye
11
Q
blehpar/o-
A
eyelid
12
Q
irid/o-
A
iris
13
Q
ir/o-
A
iris
14
Q
lacrim/o-
A
tear
15
Q
dacry/o-
A
lacrimal sac; tears
16
Q
phak/o-
A
lens
17
Q
phac/o-
A
lens
18
Q
lent/o-
A
lens
19
Q
lenticul/o-
A
lens
20
Q
retin/o-
A
retina
21
Q
pupill/o-
A
pupil
22
Q
cor/o-
A
pupil
23
Q
vis/o-
A
sight; vision
24
Q
vitre/o-
A
transparent substance
25
What is special about the eye system?
it is two identical groups
26
What is another name for the eye?
optic globe
27
The bony orbit surrounds all surfaces but what of they eye?
anterior surface
28
What comes through the posterior wall of the eye?
optic nerve
| blood vessels
29
What is the purpose of the eye?
to provide sensory information
30
What does the layer of fat in the bony orbit do?
cushions and protects the eye
31
How do the sebaceous glands help the eyelids'?
secret oil to act as a barrier to keep tears in the eye
32
Eyelashes do what for the eyes?
protect it
33
What do tears contain?
antibacterial enzyme to prevent infection
34
What is the transparent mucous membrane that covers the eyelids and continues across the anterior surface of the eye?
conjunctiva
35
What does the conjunctiva produce?
watery, mucus to allow eyelids to slide easily of the eye
36
what is the white part of the eye?
Sclera
37
What is the iris?
circular structure where color is determined.
38
What is the process called that contracts the iris?
miosis
39
What is the process called that relaxes the iris?
mydriasis
40
What does the cornea do?
- allows light to enter
- bends the rays
- has nerves that are very sensitive
41
The choroid does what for the eye?
provides blood to the eye
42
Ciliary Body does what?
- holds the lens in place behind the iris
| - contains muscles to help contract and relax the shape of the lens
43
What is the lens?
clear flexible disk behind the pupil
44
What is the small space between the cornea and the iris?
anterior chamber
45
What is the narrow space posterior to the iris?
posterior chamber
46
What is a clear, watery fluid continuously produced by the ciliary body?
aqueous humor
47
What is the largest space in the eye filled with?
vitreous humor, helps maintain the shape of they eye
48
Where is the retina located?
on the fundus, the farthest back part of the eye
49
Where does the optic nerve enter the eye?
optic disk
50
What is the macula?
dark yellow-orange area, lateral to the optic disk
51
What is the fovea?
small depression in the macula
52
Extraocular Muscles do what?
control eye movement, attached to the sclera
53
What does refraction do to light rays?
bends them so the object can be focused on
54
What does the macula produce image wise?
the clearest, sharpest image
55
What are the special light sensitive cells in the eye?
rods and cones
56
How many photons are needed to activate a rod?
one; these are helpful in daytime and nighttime functioning
57
Cones are sensitive to what?
color; red, green, and blue light
58
The image from light rays is bent by the cornea and lens how?
upside down and backwards
59
What is the crossing point called where the optic nerve crosses to join the other optic nerve?
optic chiasm
60
What does the merge at the optic chiasm create?
3-D vision
61
Where do the combined nerves enter after the optic chasm?
Thalamus
62
Where does the thalamus send sensory information?
midbrain and visual cortex
63
What does the visual cortex do for each eye?
creates the 3-D image
64
Xerophthalmia
insufficient production of tears resulting in irritation
65
Conjunctivitis
pink eye; the blood vessels become swollen
66
Sclera Icterus
yellow discoloration of the sclera
67
Glaucoma
increased pressure of the aqueous humor
68
Open Angle Glaucoma
trabecular meshwork is blocked, destroys peripheral vision
69
Closed Angle Glaucoma
the angle itself is too narrow and blocks flow to the aqueous humor (look at slide 86)
70
Photophobia
abnormal sensitivity to bright light
71
Cataract
clouding of the lens
72
Color Blindess
genetic condition in which cones are absent
73
Diabetic Retinopathy
chronic, progressive condition of the retina
74
Floaters
clumps, dots, or strings of collagen molecules that form in the vitreous humor because of agin
75
Flashers
brief bursts of bright light that occur when the vitreous humor pulls on the retina
76
Macular Degeneration
chronic, progressive loss central vision as the macula degenerates aka ARMD
77
Stabismus
cross eyed
78
Astigmatism
surface of the cornea is curved
79
Hyperopia
farsightedness
80
Myopia
nearsightedness
81
Amblyopia
lazy eye
82
20/20 Vision
normal visual activity
83
Color Blindness Testing
to test if they can detect red, green, or blue
84
Phorometry
procedure to select many different lens to detect strength of lens
85
Visual Acuity Testing
to test near and far visual accuity
| BIG E test
86
Slit-Lamp Examination
look for abnormalities in cornea, anterior chamber, trabecular meshwork, iris, or lens
87
Tonometry
procedure to detect increased intraocular pressure and glaucoma
88
Myopia Surgery
procedure to correct nearsightedness
89
Retinopexy
procedure to reattach a detached retina
90
OD
right eye
91
OS
left eye
