Eyes and Ears Assessment
Card Set Information
Eyes and Ears Assessment
eyes ears disorders assessment
Eye and ear health assessment lecture
What is the Upper pumctum?
What is the plica semilunaris
What is the palpebral fissures
Eliptical open space between eyelid margins
What is the cnathus?
Corner of eye where lids meet
What is the conjunctiva?
Thin mucuous membrane folded like envelope b/w eyelids and eyeball
What is lacrimal apparatus?
Upper outer corner; secretes tears
What is the Puncta?
Where tears drain
What is contained in the outer layer of the eye?
Sclera and cornea
What is contains in middle layer?
What is contained in inner layer?
What part of the eye bends incoming light to focus on the inner retina?
What layer of the eye contains the pupil?
What is accommodation?
Adjustment of the pupil diameter to focus on an object
What layer of the eye contains the iris?
What 3 structures can be seen through an opthalmascope?
What part of the ocular fundus changes light waves into nerve impulses?
Which part of the retina has the greatest visual acuity?
Which part of the retina has the darkest pigmentation?
What structure surrounds the fovea centralis?
Which cranial nerve is involved in afferent pathways of visual light reflex?
Cranial Nerve II
Which cranial nerve is involved in efferent pathways of visual light reflex?
Cranial Nerve III
At what point in gestation doe the eyes form?
First 8 weeks
When does central vision form (Macula)?
When does the eyeball reach adult size?
When is visual acuity fully developed?
When is central acuity diminished?
When does Presbyopia begin?
What is Presbyopia?
Hardening of the lens
What is arcus senilis?
due to deposition of lipid material around the cornea; appears like a gray-white are or circle; may look thickened and raised with increased lipid accumulation but vision is not affected
What is caratacts?
Lens thickens and yellows, causing lens to look opaque
What is glaucoma?
Increased interocular pressure
What is macular degeneration?
Cells of the macula breakdown causing loss of central vision
What is strabismus?
Crossing of the eyes
What is diplopia?
What kind of vision does the snellen chart test?
What kind of vision does the Rosenbaum chart test?
What is non-icteric?
What is OD?
What is OS?
What is OU?
What is Anisocoria?
unequal pupil size
What is Anisocoria a sign of?
CNS disease (except 5% of population)
What is Miosis?
constricted pupils due to narcotics, drops for glaucoma
What is Mydriasis?
enlarged pupils due to stimulation of sympathetic NS
What are three causes of mydriasis?
What is an E-chart used for?
Children 3-6 or illiterate clients
What are picture charts used for?
Age 2 and up
What is pseudo-strabismus?
In infants, when it looks like eyes are crossing because bridge of nose is flattened
What is Ptosis?
Neuromuscular weakness of ocular muscles
What is pseudoptosis?
Drooping of lid
What is Ectropion?
lower lid rolling out and loose, excess tearing, exposed palpebral conjunctiva increases risk of infection
What is entropion?
Lower lid rolls in, constant rubbing can irritate cornia
What is xanthelasma?
Soft, raised yellow plaques; occurs on lids at inner canthus; around 5th decade; more with women; can be associated with elevated lipid levels but also can be normal variant
What is the pinna?
The outer part of the ear
Three normal signs of the tympanic membrane?
Pearly gray color
Cone of light
What is peripheral air transmission?
Transmission and conversion of sound vibration into nerve impulses for interpretation by the brain
Three types of hearing loss?
When does the inner ear develop?
During the first trimester
What differences exist in the infants eustacian tube?
Wider, shorter and more horizontal than adults
What is otosclerosis?
Hardening that causes foot step of stapes to become fixed to oval window impeding sound transmission;
What does otosclerosis cause?
What is presbycusis?
gradual sensory hearing loss in the aging
What tones are lost firs in presbycusis?
What is mastoid process tenderness a sign of?
What is mastoiditis?
infection of mastoid process part of temporal bone of skull;from untreated otitis media;
What direction do you pull the pinna of the ear in adults during an ear exam?
Up and back
What direction do you pull the pinna in children under 3 during an ear exam?
What does the Rinne test assess?
Air vs. bone conduction
What is conductive loss?
Mechanical dysfunction of the external or middle ear
In conductive loss, which ear hears better in the Weber test?
The bad ear
In sensorineuro loss, which ear hears better in the Weber test?
The good ear