Assisting in Ophthalmology and Otolaryngology

31 terms by Amonce 

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blepharitis

inflammation of the glands and lash follicles along the margins of the eyelids

conjunctivitis

an inflammation of the conjunctiva that is usually caused by an infection or allergy; also known as pinkeye

chalazion

a small cyst resulting from the blockage of a meibomian gland (sebaceous gland) that lubricates the posterior margin of each eyelid

hordeolum

a stye; localized purulent infection of a sebaceous gland of the eyelid usually caused by staphylococcal infection

ophthalmologist

a physician who specializes in the diagnosis and treatment of the disorders and diseass of the eye. Licensed; can diagnose eye disorders,prescribe meds,conduct eye screenings adn prescribe glasses or contact lenses and perform optic surgery

optometrist

Not a medical doctor. Licensed and has a degree as a Doctor of Optomety (O.D) Can conduct eye exams,diagnose vision problems and eye diseases, and treat visual defects through corrective lenses and eye excersices.

opticians

trained to fill prescriptions written by ophthalmologists and optometrists for corrective lenses by grinding the lenses and dispensing eyewear

hyperopia

farsightedness; refractive error that does not allow the eye to focus on nearby objects

myopia

nearsightedness; the condition in which parallel rays of light are brought into focus in front of the retina, rather than on it

presbyopia

the lens of the eye becomes less flexible and the ciliary muscles weaken, causing the eye to have difficulty changing the point of focus from distance to near Results in difficulty seeing at reading level. Bifocals

diplopia

Double vision.

photophobia

abnormal sensitivity to light

otosclerosis

formation of spongy bone in the labyrinth of the ear, often causing the auditory ossicles to become fixed and unable to vibrate when sound enters the ears.

Ophthamology

the science of the eye and its disorders and diseases

cones

structures found in the retina that make the perception of color possible

strabismus

failure of the eyes to track together

nystagmus

a constant,involuntary movement of one or both eyes

presbycusis

the hearing loss that affects aging people caused by a reduced number of receptor cells in the organ of Corti

radial keratotomy

radial pattern of incisions in the cornea that cause the cornea to bulge

refraction

refers to the ablility of the lens of the eye to bend parallel light rays coming into the eye so the rays are simultaneously focused on the retina

malleus incus stapes

the auditory ossicles or bones; the middle ear

macular degeneration

a progressive deterioration of the macula lutea that causes loss of centeral vision so that the patient can see only the edges of the visual field

organ of corti

organ located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing

semicircular canals

three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement

menieres disease

causes swelling and edema in the endolymphatic sac(located in the inner ear), with an overproduction or collection of excess endolymph (fluid in the semicircular canals)

wet macular degeneration

Has a very acute onset and rapid progression. Occurs when new blood vessels behind the retina form and leak blood and fluid into the macula

dry macular degeneration

Painless and develops slowly affecting sharp vision over time so that reading or other activities require fine detailed vision become impossible. Caused by the breakdown of light sensitive cells in the macula region.

otitis externa

"swimmer's ear"; affects the external canal and is caused by dermatologic conditions, such as seborrhea or psoriasis, trauma to the canal, or the continuous use of earplugs or earphones.

otitis media

an inflammation of the normally air-filled middle ear, resulting in a collection of fluid behind the tympanic membrane

Serous otitis media

occurs because of a buildup of clear fluid in the middle ear with patients complaining of a full feeling and some hearing loss.

Suppurative Otitis Media

purulent fluid is present in the middle ear, with fever,pain, and hearing loss. Cause is often associated with an upper respiratory tract infection that has spread through the eustachian tube into the middle ear or with an allergic reaction

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