Med Term Ch 11

blephar/o

eyelid

-cusis

hearing

irid/o

iris, color part of eye

kerat/o

horny, hard, cornea

myring/o

tympanic membrane, eardrum (not tympan/o)

ophthalm/o

eye, vision (not opt/o)

-opia

vision condition

opt/o

eye, vision (not ophthalm/o)

ot/o

ear, hearing

phak/o

lens of eye

presby/o

old age

retin/o

retina, net

scler/o

sclera, white of eye, hard

trop/o

turn, change

tympan/o

tympanic membrane, eardrum (not myring/o)

adnexa

structure outside of the eyeball; accessory or adjoining anatomical parts of an organ

amblyopia

a dimness of vision or the partial loss of sight, especially in one eye, without detectable disease of the eye

ametropia

any error of refraction in which images do not focus properly on the retina

anisocoria

a condition in which the pupils are unequal in size

astigmatism

a condition in which the eye does not focus properly because of uneven curvatures in the cornea

audiometry

the use of an audiometer to measure hearing acuity

cataract

the loss of transparency of the lens that causes a progressive loss of visual clarity

chalazion

a nodule or cyst, usually on the upper eyelid, caused by obstruction in a sebaceous gland

cochlear implant

an implanted electronic device that can give a deaf person a useful auditory understanding of the environment and/or hearing and help them to understand speech; it bypasses the damaged portions of the ear and directly stimulates the auditory nerve

conjunctivitis

pinkeye — an inflammation of the conjunctiva that is usually cause by an infection or allergy

dacryoadenitis

an inflammation of the lacrimal gland that can be caused by bacterial, viral or fungal infection

diplopia

the perception of two images of a single object; also known as double vision

ectropion

the eversion of the edge of an eyelid

emmetropia

the normal relationship between the refractive power of the eye and shape of the eye that enables light rays to focus correctly on the retina

entropion

the inversion of the edge of an eyelid

esotropia

strabismus characterized by an inward deviation of one or both eyes; also known as cross-eyes

exotropia

strabismus characterized by the outward deviation of one eye relative to the other; also known as walleye

fluorescein angiography

a radiographic study of the blood vessels in the retina of the eye following the intravenous injection of a fluorescein dye as a contrast medium

glaucoma

a group of diseases characterized by increased intraocular pressure that cause damage to the retinal nerve fibers and the optic nerve

hemianopia

blindness in one-half of the visual field

hordeolum

a pus-filled lesion on the eyelid resulting from an infection in the sebaceous gland; also known as a stye

hyperopia

farsightedness; a defect in which light rays focus beyond the retina

infectious myringitis

a contagious inflammation that causes painful blisters on the ear drum

iridectomy

the surgical removal of a portion of the tissue of the iris

iritis

an inflammation of the uvea primarily affecting structures in the front of the eye

keratitis

an inflammation of the cornea

labyrinthectomy

the surgical removal of all or a portion of the labyrinth

laser trabeculoplasty

uses a focused beam of light to create a hole in the iris of the eye; treatment of open-angle glaucoma by creating openings in the trabecular meshwork to allow fluid to drain properly

mastoidectomy

the surgical removal of mastoid cells

mydriasis

dilation of the pupil

myopia

nearsightedness; a defect in which light rays focus in front of the retina

myringotomy

the surgical incision in the eardrum to create an opening for the placement of ear tubes or to relieve pressure from excess pus or fluid

nyctalopia

a condition in which an individual with normal daytime vision has difficulty seeing at night; also known as night blindness

nystagmus

an involuntary, constant, rhythmic movement of the eyeball

ophthalmoscopy

the visual examination of the fundus (back part) of the eye with an ophthalmoscope; also known as funduscopy

optometrist

holds a Doctor of Optometry degree and provides primary eye care, including diagnosing eye diseases and conditions and measuring the accuracy of vision to determine whether corrective lenses are needed

otitis media

inflammation of the middle of the ear

otomycosis

a fungal infection of the external auditory canal

otopyorrhea

the flow of pus from the ear

otorrhea

any discharge from the ear

otosclerosis

the ankylosis of the bones of the middle ear, resulting in a conductive hearing loss

papilledema

swelling and inflammation of the optic nerve at the point of entrance into the eye through optic disk; also known as choked disk

periorbital edema

swelling of the tissues surrounding the eye or eyes

photophobia

excessive sensitivity to light

presbycusis

gradual sensorineural hearing loss that occurs with age

presbyopia

the condition of common changes in the eyes that occur with aging

ptosis

drooping of the upper eyelid that is usually due to paralysis

radial keratotomy

a surgical procedure to treat myopia

retinopexy

treatment used to reattach the detached area in a retinal detachment

scleritis

an inflammation of the sclera

sensorineural hearing loss

hearing loss that develops when the auditory nerve or hair cells in the inner ear are damaged; also known as nerve deafness

stapedectomy

the surgical removal of the top portion of the stapes bone and the insertion of a small prosthetic device known as a piston that conducts sound vibration to the inner ear

strabismus

a disorder in which the eyes point in different directions or are not aligned correctly because the eyes muscles are unable to focus together

tarsorrhaphy

the partial, or complete, suturing together of the upper and lower eyelids

tinnitus

ringing, buzzing, or roaring sound in one or both ears

tonometry

the measurement of intraocular pressure

tympanometry

use of air pressure in the ear canal to test for disorders of the middle ear

vertigo

sense of whirling, dizziness, and the loss of balance, that is often combined with nausea and vomiting

vitrectomy

the removal of the vitreous fluid and its replacement with a clear solution

xerophthalmia

drying of the eye surfaces, including the conjunctiva; also known as dry eye