Chapter 16 Flashcards Preview

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Flashcards in Chapter 16 Deck (163):
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accommodation

adjustment of the eye for various distances so that images fall on the retina of the eye

1

acuity

clearness or sharpness of a sensory function

2

adnexa

tissues or structures in the body adjacent to or near a related structure

3

humor

any fluid or semifluid of the body

4

labyrinth

series of intricate communicating passages

5

opaque

substance or surface that neither transmits nor allows the passage of light

6

perilymph

fluid that very closely resembles spinal fluid but found in the cochlea

7

photopigment

light sensitive pigment in the retinal cones and rods that absorbs light and initiates the visual process
also called visual pigment

8

refractive

ability to bend light rays as they pass from one medium to another

9

tunic

layer or coat of tissue
also called membrane layer

10

ambly/o

dull
dim

11

aque/o

water

12

blephar/o

eyelid

13

choroid/o

choroid

14

conjunctiv/o

conjunctiva

15

core/o, pupill/o

pupil

16

corne/o

cornea

17

cycl/o

ciliary body of the eye
circular
cycle

18

dacry/o, lacrim/o

tear
lacrimal apparatus
duct, sac, gland

19

dacryocyst/o

lacrimal sac

20

glauc/o

gray

21

goni/o

angle

22

irid/o

iris

23

kerat/o

horny tissue
hard
cornea

24

ocul/o, ophthalm/o

eye

25

opt/o, optic/o

eye
vision

26

phac/o

lens

27

phot/o

light

28

presby/o

old age

29

retin/o

retina

30

scler/o

hardening sclera (white of the eye)

31

scot/o

darkness

32

vitr/o

vitreous body
of the eye

33

audi/o

hearing

34

labyrinth//o

labyrinth
inner ear

35

mastoid/o

mastoid process

36

ot/o

ear

37

salping/o

tubes
usually fallopian or eustachian auditory tubes

38

staped/o

stapes

39

myring/o

tympanic membrane
eardrum

40

tympan/o

tympanic membrane

41

-acusia, -cusis

hearing

42

-opia, -opsia

vision

43

-tropia

turning

44

exo-

outside
outward

45

hyper-

excessive
above normal

46

achromatopsia

severe congenital deficiency in color perception

47

chalazion

small, hard tumor developing on the eyelid

48

conjunctivitis

inflammation of the conjunctiva with vascular congestion that produces a red or pink eye and may be secondary to allergy or viral, bacterial, or fungal infections

49

ectropion

Eversion, or outward turning, of the edge of the lower eyelid

50

entropion

Inversion, or inward turning, of the edge of the lower eyelid

51

epiphora

abnormal overflow of tears

52

hrodeolum

localized, circumscribed, inflammatory swelling of one of the several sebaceous glands of the eyelid, generally caused by a bacterial infection
also called stye

53

metamorphopsia

visual distortion of objects

54

nyctalopia

impaired vision in dim light
night blindness

55

nystagmus

type of involuntary eye movements that appear jerky and may reduce vision or be associated with other, more serious conditions that limit vision

56

papilledema

swelling and hyperemia of the optic disc, usually associated with increased intracranial pressure
choked disc

57

photophobia

unusual intolerance and sensitivity to light

58

presbyopia

loss of accommodation of the crystalline lens associated with the aging process

59

retinopathy

any disorder of retinal blood vessels

60

diabetic retinopathy

disorder that occurs in patients with diabetes and manifests as small hemorrhages, edema, and formation of new vessels on the retina, leading to scarring and eventual loss of vision

61

trachoma

chronic, contagious form of conjunctivitis that typically leads to blindness

62

anacusis

complete deafness

63

conduction impairment

blocking of sound waves as they pass through the external and middle ear
conduction pathway

64

labyrinthitis

inflammation of the inner ear that usually results from an acute febrile process

65

Meniere disease

disorder of the labyrinth that leads to progressive loss of hearing

66

noise-induced hearing loss (NIHL)

condition caused by the destruction of hair cels, the organs responsible for hearing, as a result of sounds that are "too long, too loud, or too close"

67

otitis externa

infection of the external auditory canal

68

presbyacusis

impairment of hearing resulting from old age

69

tinnitus

perception of ringing, hissing, or other sounds in the ears or head when no external sound is present

70

vertigo

sensation of a spinning motion either of oneself or of the surroundings

71

ear irrigation

flushing of the ear canal with water or saline to dislodge foreign bodies or impacted cerumen (earwax)

72

slit-lamp examination (SLE)

stereoscopic magnified view of the anterior eye structures in detail, which includes the cornea, lens, iris, sclera, and vitreous humor

73

blepharoplasty

cosmetic surgery that removes fatty tissue above and below the eyes that commonly form as a result of the aging process or excessive exposure to the sun

74

pressure-equalizing (PE) tube placement

insertion of tubes through the tympanic membrane, commonly used to treat chronic otitis media

75

cochlear implant insertion

placement of an artificial hearing device that produces hearing sensations by electrically stimulating nerves inside the inner ear

76

cyclodialysis

formation of an opening between the anterior chamber and the suprachoroidal space for the draining of aqueous humor in glaucoma

77

enucleation

removal of the eyeball from the orbit

78

evisceration

removal of the contents of the eye while leaving the sclera and cornea intact

79

mastoid antrotomy

surgical opening of a cavity within the mastoid process

80

otoplasty

corrective surgery for a deformed or excessively large or small pinna

81

phacoemulsification

method of treating cataracts by using ultrasonic waves to disintegrate cloudy lens, which is the n aspirated and removed

82

radial keratotomy (RK)

incision of the cornea for treatment of nearsightedness or astigmatism

83

sclerostomy

surgical formation of an opening in the sclera

84

tympanoplasty

reconstruction of the eardrum, commonly due to perforation

85

audiometry

measurement of hearing acuity at various sound wave frequencies

86

caloric stimulation test

test that uses different water temperatures to assess the vestibular portion of the nerve of the inner ear (acoustic nerve) to determine if nerve damage is the case of vertigl

87

electronstagmography

method of assessing and recording eye movements by measuring the electrical activity of the extraocular muscles

88

gonioscopy

examination of the angle of the anterior chamber of the eye to determine ocular motility and rotation and diagnose and manage glaucoma

89

ophthalmodynamometry

measurement of the blood pressure of the retinal vessels

90

ophthalmoscopy

visual exam of the interior of the eye using a handheld instrument called an ophthalmoscope which has various adjustable lenses for magnification and light source to illuminate the interior of the eye

91

otoscopy

visual exam of the external auditory canal and the tympanic membrane using an otoscope

92

pneumatic otoscopy

procedure that assesses the ability of the tympanic membrane to move in response to change in air pressure

93

retinoscopy

evaluation of refractive errors of the eye by projecting a light into the eyes and determining the movement of reflected light rays

94

tonometry

evaluation of intraocular pressure by measuring the resistance of the eyeball to indentation by an applied force

95

turning fork test

evaluation of sound conduction using a vibrating turning fork

96

Rinne turning fork test

evaluates bone conduction (BC) versus air conduction (AC) of sound

97

Weber turning fork test

evaluates bone conduction of sound in both ears at the same time

98

visual acuity (VA) test

part of an eye exam that determines the smallest letters that can be read on a standardized chart at a distance of 20 feet

99

dacryocystography

radiograhic imaging procedure of the nasolacrimal (tear) glands and ducts

100

fluorescein angiography

evaluation of blood vessels and their leakage in and beneath the retina after injection of fluorescein dye, which circulates while photographs of the vessels within the eye are obtained

101

Acc

accommodation

102

ARMD, AMD

age-related mascular degeneration

103

Ast

astigmatism

104

ENG

electronystagmography

105

IOL

intraocular lens

106

IOP

intraocular pressure

107

LASIK

laser-assisted in situ keratomileusis

108

AC

air conduction

109

BC

bone conduction

110

ENT

ear
nose
throat

111

NIHL

noise-induced hearing loss

112

O.D.

doctor of optometry

113

RK

radial keratotomy

114

SLE

slit-lamp examination
systemic lupus erythematosus

115

ST

esotropia

116

VA

visual acutiy

117

VF

visual field

118

XT

exotropia

119

OM

otitis media

120

PE

physical examination
pulmonary embolism
pressure-equalizing (tube)

121

URI

upper respiratory infection

122

ophthalm/o

eye

123

pupill/o

pupil

124

kerat/o

cornea

125

scler/o

sclera

126

irid/o

iris

127

retin/o

retina

128

blephar/o

eyelid

129

ot/o

ear

130

audi/o

hearing

131

-opia

vision

132

-acusis

hearing

133

cataract

opacity that forms on the lens and impairs vision

134

achromatopsia

severe congenital form of color blindness

135

presbyacusis

impaired hearing due to old age

136

anacusis

complete deafness

137

otitis externa

infection of the external auditory canal

138

otosclerosis

ankylosis of the middle ear bones resulting in hearing loss

139

otitis media

middle ear infection commonly found in infants and children

140

otopyorrhea

discharge of pus from the ear

141

vertigo

feeling of dizziness

142

exotropia

outward deviation of the eye

143

drusen

small, yellowish deposits that develop on macula in age related macular degeneration

144

chalazion

tumor of the eyelid similar to a sebaceous cyst

145

amblyopia

lazy eye syndrome

146

retinoblastoma

neoplastic disease of the eye found primarily in children

147

tinnitus

perception of ringing in the ears with no external stimuli

148

caloric stimulation

test that uses different temperatures to assess the vestibular portion of the nerve

149

ophthalmoscopy

visual exam of the interior of the eye

150

cochlear implant

artificial device that produces hearing sensations by electrically stimulating nerves inside the inner ear

151

fluorescein angiography

assesses blood vessels and retinal circulation using a colored dye while photographs are taken

152

mydriatics

agents that dilate the pupils and paralyze the eye muscles of accommodation

153

evisceration

removal of the contents of the eyeball leaving the sclera and cornea

154

antimetics

treat and prevent nausea, vomiting, dizziness, and vertigo

155

ST

esotropia

156

XT

exotropia

157

gonioscopy

visual exam of the angle of the anterior chamber of the eye

158

radial keratotomy

surgical treatment for nearsightedness that uses small incisions to flatten the cornea

159

otic analgesics

provide temporary relief from earache

160

tonometry

pressure measurement

161

hyperopia

farsightedness

162

trabeculoplasty

surgical repair of the trabecula