Medical Terminology Word List 6 Eye And Ear System

Front 1

blepharoptosis

Back 1

a drooping or abnormal relaxation of the upper eyelid

Front 2

astigmatism

Back 2

1 : a defect of an optical system (as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image
2 : a defect of vision due to _____________ of the refractive system of the eye and especially to corneal irregularity

Front 3

blepharitis

Back 3

inflammation of the eyelids and especially of their margins

Front 4

cataract

Back 4

a clouding of the lens of the eye or its surrounding transparent membrane that obstructs the passage of light

Front 5

conjunctiva

Back 5

the mucous membrane that lines the inner surface of the eyelids and is continued over the forepart of the eyeball

Front 6

conjunctivitis

Back 6

inflammation of the conjunctiva

Front 7

dacryocystitis

Back 7

inflammation of the lacrimal sac

Front 8

detached retina

Back 8

a condition of the eye in which the retina has separated from the choroid

Front 9

diplopia

Back 9

a disorder of vision in which two images of a single object are seen (as from unequal action of the eye muscles) -- called also double vision

Front 10

glaucoma

Back 10

a disease of the eye marked by increased pressure within the eyeball that can result in damage to the optic disk and gradual loss of vision

Front 11

hordeolum

Back 11

an inflamed swelling of a sebaceous gland at the margin of an eyelid --

Front 12

hyperopia

Back 12

a condition in which visual images come to a focus behind the retina of the eye and vision is better for distant than for near objects -- called also farsightedness, hypermetropia

Front 13

iritis

Back 13

inflammation of the iris of the eye

Front 14

keratitis

Back 14

inflammation of the cornea of the eye characterized by burning or smarting, blurring of vision, and sensitiveness to light and caused by infectious or noninfectious agents -- called also corneitis

Front 15

macular degerneration

Back 15

progressive deterioration of the macula lutea resulting in a gradual loss of the central part of the field of vision

Front 16

myopia

Back 16

a condition in which the visual images come to a focus in front of the retina of the eye because of defects in the refractive media of the eye or of abnormal length of the eyeball resulting especially in defective vision of distant objects -- called also nearsightedness

Front 17

nystagmus

Back 17

involuntary usually rapid movement of the eyeballs (as from side to side) occurring normally with dizziness during and after bodily rotation or abnormally following head injury or as a symptom of disease

Front 18

photophobia

Back 18

1 : intolerance to light; especially : painful sensitiveness to strong light
2 : an abnormal fear of light

Front 19

presbyopia

Back 19

a visual condition which becomes apparent especially in middle age and in which loss of elasticity of the lens of the eye causes defective accommodation and inability to focus sharply for near vision

Front 20

pterygium

Back 20

1 : a triangular fleshy mass of thickened conjunctiva occurring usually at the inner side of the eyeball, covering part of the cornea, and causing a disturbance of vision
2 : a forward growth of the cuticle over the nail

Front 21

retinopathy

Back 21

any of various noninflammatory disorders of the retina including some that cause blindness

Front 22

strabismus

Back 22

inability of one eye to attain binocular vision with the other because of imbalance of the muscles of the eyeball -- called also heterotropia, squint

Front 23

blepharoplasty

Back 23

plastic surgery on an eyelid especially to remove fatty or excess tissue

Front 24

keratoplasty

Back 24

plastic surgery on the cornea; especially : corneal grafting

Front 25

opthalmologist

Back 25

a physician who specializes in ophthalmology

Front 26

optician

Back 26

1 : a maker of or dealer in optical items and instruments
2 : a person who reads prescriptions for visual correction, orders lenses, and dispenses eyeglasses and contact lenses -- compare

Front 27

optometrist

Back 27

a specialist licensed to practice optometry

Front 28

auricle or pinna

Back 28

the ear flap. a : PINNA b : an atrium of the heart
2 : an angular or ear-shaped anatomical lobe or process (as an auricular appendage of the heart)

Front 29

tympanic membrane

Back 29

a thin membrane separating the middle ear from the inner part of the external auditory canal that vibrates in response to sound energy and transmits the resulting mechanical vibrations to the structures of the middle ear -- called also eardrum, tympanum

Front 30

cerumen

Back 30

:EARWAX

Front 31

eustachian tube

Back 31

a bony and cartilaginous tube connecting the middle ear with the nasopharynx and equalizing air pressure on both sides of the tympanic membrane -- called also auditory tube, pharyngotympanic tube

Front 32

otalgia

Back 32

: EARACHE

Front 33

otorrhagia

Back 33

hemorrhage from the ear

Front 34

otorrhea

Back 34

: a discharge from the external ear

Front 35

tinnitus

Back 35

a sensation of noise (as a ringing or roaring) that is caused by a bodily condition (as a disturbance of the auditory nerve or wax in the ear) and typically is of the subjective form which can only be heard by the one affected

Front 36

vertigo

Back 36

1 : a disordered state which is associated with various disorders (as of the inner ear) and in which the individual or the individual's surroundings seem to whirl dizzily

Front 37

cerumen impaction

Back 37

compacted ear wax

Front 38

tympanitis or myringitis

Back 38

inflammation of the tympanic membrane

Front 39

otitis externa

Back 39

inflammation of the external auditory canal; specifically : SWIMMER'S EAR

Front 40

otitis media

Back 40

acute or chronic inflammation of the middle ear; especially : an acute inflammation especially in infants or young children that is caused by a virus or bacterium, usually occurs as a complication of an upper respiratory infection, and is marked by earache, fever, hearing loss, and sometimes rupture of the tympanic membrane

Front 41

otosclerosis

Back 41

growth of spongy bone in the inner ear where it gradually obstructs the oval window or round window or both and causes progressively increasing deafness

Front 42

presbycusis

Back 42

a lessening of hearing acuteness resulting from degenerative changes in the ear that occur especially in old age

Front 43

audiometry

Back 43

the testing and measurement of hearing acuity for variations in sound intensity and pitch and for tonal purity

Front 44

tympanoplasty or myringoplasty

Back 44

a plastic operation for the repair of perforations in the tympanic membrane

Front 45

myringotomy

Back 45

incision of the tympanic membrane

Front 46

accommodation

Back 46

an adaptation or adjustment especially of a bodily part (as an organ): as a : the automatic adjustment of the eye for seeing at different distances effected chiefly by changes in the convexity of the crystalline lens b : the range over which such adjustment is possible

Front 47

the clear gel that fills the space between the lens and the retina

Back 47

vitreous humor

Front 48

aqueous humor

Back 48

thick watery substance in the anterior chamber

Front 49

choroid

Back 49

the vascular layer of the eye lying between the retina and the sclera