TEST 3 - sensory Flashcards
macular problems dx
amsler grid
intraocular pressure dx
tonometry
field of vision dx
perimetry testing
lesions of globe/orbit dx
ultrasonography
Vasculature
Fluorescein angiography
distortion caused by irregularity of cornea
Astigmatism
what measurement do we use to determine blindness
BCVA
Proper instillation of eye tx
Eye irrigations
-allow irrigating fluids to flow from inner to outer
Eye drops
- sterile dropper must not touch eye
- tilt head back, overflow towards temporal side
- drops into lower conjunctival sac
- prevent systemic absorption – press inner canthus of eye
- blink b/w drops
Leading cause of blindness in US
glaucoma
s/s glaucoma
peripheral clouding ,blurring
difficulty focusing
difficulty adjusting eyes in low light
Meds for glaucoma
Cholinergics beta-blockers alpha-adrenergic agonists carbonic anhydrase inhibitors prostaglandin analogues
beta blockers for glaucoma
timolol
metapramilol
s/s cataracts
decrease in vision (especially distant) abnormal color perception sensitivity to glare myopic shift astigmatism diplopia
color shift of cataract
brunescens
s/s retinal detachment
shade or curtain coming across vision
bright lights
sudden floaters
Surgical treatment retinal detachment
scleral buckle
pars plana vitrectomy
pneumatic retinopexy
important consideration for retinal detachment
Post-op positioning
sign of dry macular degeneration
drusen - tiny yellowish spots beneath retina
Drugs that increase risk of macular degeneration
thyroid hormones
hydrochlorothiazides
Education post-photodynamic therapy
avoid sunlight for 5 days
systemic disease with occular consequences
diabetes - diabetic retinopathy
AIDs
Hypertension
interruption or break in visual fields
scotomas
Repetitive uncontrollable movements
nystagmus
lazy eye
strabismus
hearing loss causes
conduction problem
sensorineural loss
mixed
psychogenic issue
What causes sensorineural loss
damage to choclea or vestibulocochlear nerve
guidelines for communicating with hearing impaired
Use a low-tone normal voice Speak slowly and distinctly Reduce background noise and distractions Face person and get attention Speak into less impaired ear Use gestures and facial expressions Write out info or obtain a sign language translator
conditions of outer ear
external otitis
malignant external otitis
Conditions of middle ear
tympanic membrane perforation
Acute otitis media
Meniere’s Disease patho
Abnormal inner ear fluid balance caused by malabsorption of the endolymphatic sac or blockage of the endolymphatic duct
Meniere’s Disease
Fluctuating, progressive hearing loss
Tinnitus
Pressure fullness
Episodic incapacitating vertigo w/ n/v
Meniere’s tx
Low-sodium diet, 2000 mg/day
Surgical mgmt. to eliminate vertigo
Endolymphatic sac decompression
Meniere’s meds
Meclizine, tranquilizers, anti-emetics, diuretics
BPPV tx
Epley’s maneuver
Acoustic neuroma
A slow-growing, benign tumor of cranial nerve VIII
Acoustic neuroma s/s
hearing loss
tinnitus
Ototoxic meds
Abx diuretics (loop) NSAIDs ED meds Chemo
