Exam 5 - Special Senses Flashcards
“lazy eye” or when the eye and brain are not working together properly and the brain favors the other eye - vision can be reduced
amblyopia
eye is shaped like a cone or football and light is bent more one way and not evenly., partial object is in focus
can be fixed with contacts, glasses, or surgery
astigmatism
bacteria and oily flakes at the base of your eyelashes. Your eyelids are red, swollen, or feel like they are burning.
blepharitis
inflammation of conjuctiva
conjuctivitis or pink eye
what is the conjuctiva
the clear tissue that covers the eye ball and lines the inside of the eyelid
is a condition in which your eyelid turns outward. This leaves the inner eyelid surface exposed and prone to irritation.
ectropion
medical condition in which the eyelid (usually the lower lid) folds inward. It is very uncomfortable, as the eyelashes continuously rub against the cornea causing irritation
entropion
localized infection or inflammation of the eyelid margin involving hair follicles of the eyelashes or meibomian glands.
usually is painful, erythematous, and localized. It may produce edema of the entire lid. Purulent material exudes from the eyelash line in external hordeola, while internal hordeola suppurate on the conjunctival surface of eyelid.
Hordeolum
vision condition in which distant objects can be seen clearly, but close ones do not come into proper focus. Farsightedness occurs if your eyeball is too short or the cornea has too little curvature. In these cases, your eye can’t correctly focus the light that enters it.
hyperopia or farsightedness
inflammation of the cornea — the clear, dome-shaped tissue on the front of your eye that covers the pupil and iris
keratitis
inflammatory disorder of the inner ear, or labyrinth. Clinically, this condition produces disturbances of balance and hearing to varying degrees and may affectone or both ears. Bacteria or viruses can cause acute inflammation of the labyrinth in conjunction with either local or systemic infections.
labrynthitis
caused by the deterioration of the central portion of the retina, the inside back layer of the eye that records the images we see and sends them via the optic nerve from the eye to the brain. The retina’s central portion, known as the macula, is responsible for focusing central vision in the eye, and it controls our ability to read, drive a car, recognize faces or colors, and see objects in fine detail.
macular degeneration
result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside the mastoid process
mastoiditis
occurs when the eyeball is too long, relative to the focusing power of the cornea and lens of the eye. This causes light rays to focus at a point in front of the retina, rather than directly on its surface.
myopia or nearsightedness
, also known as swimmer’s ear,[1] is an inflammation of the ear canal.[2] It often presents with ear pain, swelling of the ear canal, and occasionally decreased hearing.[2] Typically there is pain with movement of the outer ear. A high fever is typically not present except in severe cases
otitis externa
group of inflammatory diseases of the middle ear
otitis media
age-related hearing loss, is the cumulative effect of aging on hearing. It is a progressive and irreversible bilateral symmetrical age-related sensorineural hearing loss resulting from degeneration of the cochlea or associated structures of the inner ear or auditory nerves. The hearing loss is most marked at higher frequencies.
presbycusis
is a condition associated with aging of the eye that results in progressively worsening ability to focus clearly on close objects
presbyopia
drooping of the upper or lower eyelid
ptosis
is a problem with focusing of light on the retina due to the shape of the eye
refractive error
measure of how well you understand what you hear when speech is loud enough to hear comfortably
speech discriminnation
what are the numbers for speech discrimination
0% is not understanding anything you hear
and 100% is everything you hear
This is used with older children and adults, and helps to confirm the pure-tone test results. The SRT records the faintest speech that can be heard half the time.
speech reception threshold
inflammation of the uvea, the pigmented layer that lies between the inner retina and the outer fibrous layer composed of the sclera and cornea
uveaitis
what are the visual acuity exams for the eye
snellen and amsler grid corneal light reflex motor exam/6 cardinal fields visual color litmus vision screen
what are the red eye complaints (10)
conjunctivitis herpes simplex keratitis scleritis angle closure glaucoma adnexal disease subconjunctival hemorrhage ptergium keratoconjunctivtis abrasions and foreign body abnormal lid function
check visual acuity inspect redness pattern inspect discharge observe the cornea examine the anterior chamber examine the pupils for irregularity check intraocular pressure examine the lid for disorders
all are necessary for what
evaluating red eye
what is conjunctivitis
inflammation of conjuctiva, inner layer of lid and outer layer of eye
what are the 3 types of conjunctivitis
contagious (infection)
allergic
non allergic (foreign body)
manifestation of conjuctivitis
exudate
burning
gritty sensation
treatment for conjunctivitis
topical antibiotics
what is herpes simplex keratitis
inflammation of cornea caused by herpes
how do you prevent herpes simplex keratitis from being worse or exacerbating
stress and sun exposure
how do you treat herpes simplex keratitis
topical antiviral corticosteroid
what is scleritis
inflammation of scleritis
how is scleritis caused
infection
chemical injuries
autoimmune disease (RA and SLE)
menstration issues
what is the first symptoms of autoimmune connective tissue disorder
scleritis
who is most at risk for slceritis
30-50yo women
what is the treatment for scleritis
NSAID, methotrexate or corticosteroid
what is angle closure glaucoma
sudden closure of anterior chamber angle by iris tissue
what is the incidence of angle closure glaucoma
only 10 % of actual glaucoma
what is the difference between open and closed glaucoma
open is eye pressure
closed is intraocular pressure
what is the treatment for closed angle glaucoma
reduce fluid
emergency