Unit 7 Special Sense- Chapter 17 Medical Terminology

anis/o

unequal

aque/o

water

audi/o

hearing

audit/o

hearing

aur/o

ear

auricul/o

ear

blephar/o

eyelid

cochle/o

cochlea (inner part of ear)

conjunctiv/o

conjunctiva (lines the eyelids)

cor/o

pupil

corne/o

cornea

cycl/o

ciliary body of eye; circle

dacry/o

tear

dipl/o

double

glauc/o

gray

ir/o

iris (colored portion of eye)

irid/o

iris (colored portion of eye)

kerat/o

cornea; hard, h0rny, tissue

lacrim/o

tear; tear duct; lacrimal duct

mastoid/o

mastoid process (behind the ear)

mi/o

smaller; less

myc/o

fungus

mydr/o

wide

myring/o

tympanic membrane (eardrum)

nyct/o

night

ocul/o

eye

ophthalm/o

eye

opt/o

eye; vision

optic/o

eye; vision

ossicul/o

ossicle (small bone)

ot/o

ear

palpebr/o

eyelid

papill/o

nipple-like; optic disc (disk)

phac/o

lens of eye

phak/o

lens of eye

phot/o

light

presby/o

old age

pupill/o

pupil (dark center of the eye)

retin/o

retina

salping/o

fallopian tube; auditory (eustachian) tube

scler/o

sclera (white of eye); hard

scot/o

darkness

staped/o

stapes (middle ear bone)

tympan/o

tympanic membrane (eardrum); middle ear

uve/o

uvea, vascular layer of eye (iris, choroid, ciliary body)

vestibul/o

vestibule of the inner ear

vitre/o

glass

xer/o

dry

-acusis

hearing

-cusis

hearing

-meter

measure

-metry

process of measurement

-opia

vision condition

-opsia

vision condition

-otia

ear condition

-phobia

fear

-plegic

pertaining to paralysis; palsy

-tropia

to turn

accommodation

adjustment of the lens by the ciliary body

acous/o

hearing

ambly/o

dull, dim

amblyopia

Decreased visual acuity often in a single eye and appearing in children; lazy eye

anisocoria

Inequality in the size of pupils.

anterior chamber (part of the eye)

Area of the eye behind the cornea and in front of the lens and iris. It contains aqueous humor.

aphakia

Absence of the lens of the eye.

aqueous humor

Fluid produced by the ciliary body and found in the anterior chamber of the eye.

astigmatism

Defective curvature of the cornea or lens of the eye.

blepharoptosis

Sagging or drooping eyelid; ptosis.

biconvex

Consisting of two surfaces that are rounded, elevated, and curved evenly, like part of a sphere.

blepharitis

Inflammation of an eyelid.

cataract

Clouding of the lens, causing decreased vision.

chalazion

Small, hard, cystic mass (granuloma) on the eyelid; formed from a sebaceous gland enlargement

choroid (part of the eye)

Middle, vascular layer of the eye, between the retina and the sclera.

ciliary body (part of the eye)

Structure surrounding the lens that connects the iris to the choroid.

cones

Photosensitive receptor cells of the retina; make the perception of color possible:

conjunctiva (part of the eye)

Delicate membrane lining the eyelids and covering the eyeball up to the cornea

conjunctivitis

Inflammation of the conjunctiva. also known as an pink eye

cornea (part of the eye)

Fibrous transparent layer of clear tissue that extends over the anterior portion of the eyeball and is continuous with the white of the eye; healing fast

corneal abrasion

Superficial scratch on the cornea (front of the eye).

corneoscleral

Pertaining to the cornea and sclera (white of the eye).

cycloplegic

Pertaining to paralysis of the ciliary muscles of the eye.

dacryoadenitis

Inflammation of tear glands.

diabetic retinopathy

Disease of the retina caused by diabetes mellitus; microaneurysms, hemorrhages, dilation of retinal veins, and neovascularization (new blood vessels) in the retina.

diplopia

double vision

enucleation

Removal of the entire eyeball.

esotropia

Turning inward of one or both pupils; “cross eyes.”

exotropia

Turning of one or both pupils to the side or outward.

fluorescein angiography

Intravenous injection of fluorescein (a dye) followed by serial photographs of the retina through dilated pupils.

fovea centralis (part of the eye)

Tiny pit or depression in the retina that is the region of clearest vision.

fundus of the eye

Posterior, inner part of the eye; visualized with an ophthalmoscope.

glaucoma

Increased intraocular pressure that results in damage to the retina and optic nerve with loss of vision

hemianopsia

Absence of vision for one half, right or left, of an individual’s field of vision.

hordeolum

Small, superficial white nodule along lid margin due to infection of a sebaceous gland; stye.

hyperopia

Farsightedness; vision condition in which distant objects are seen more clearly than objects that are near.

hypertensive retinopathy

Disease of the retina due to high blood pressure.

intraocular

Pertaining to within the eye.

intravitreal

Pertaining to within the vitreous humor.

iridectomy

Removal of a portion of the iris.

iridic

Pertaining to the iris

iris (part of the eye)

igmented (colored) layer of the eye. and opening and closing pupil muscle