EENT Flashcards
ectropion
eyelashes and lashes turned outwear- dryness, tearing irritaton
entropion
eyelid adn lashes turned inward- cornea abrasions from eyelashes. lubrication eye drops or surgery
dacrocystitis
mc. s. aureus
abx: clinda, vacnco plus ceftriaxone
blephritis
both eyelids
anterior: infectious or seborrheic
incfectious from staph aureus
posterior: mbemobian gland dysfucntion
red rimming, crusting, scaling of eyelid and eleash flaking
eyelid hygeine, regular massage/expression of meibomian gland
stye
staph arues near the lid margin warm compress i and d if not drained after 48 hours erythro, bacitracin if active draining
chalazion
painless granuloma of the internal meibomian sebacious gland- nontender eyelid sweeling
eyelid hygeine, warm compresses
globe rupture
penetrating trauma, visual acuity decreased
enopthalmos- recession of globe in the robit
severe conjunctival hemorrhage
+seidel’s test: parting of flouresceine dye
teardrop or irreg shaped pupil, hyphema
rigid eye shield- dont remove impaled ojbect
hyphema: place at 45 degrees
blow out fractures
decreased visual acuity,
diplopia especially with upward gaszze- inferior rectus muscle entrapped
orbital emphysema
epistaxis
nasal decongestion, avoid blowing nose, abx- unasyn or clinda
macular degeneration
mc permanent legal blindness and visual loss- color vision and central vision gone
dry-drusen- small, round, yellow-white spots on the outer retina
NEOVASCULARIZATION- new abnormal vessels- WET
straight lines seem bent
amsler grid to monitor stability
bevacizumab- inhibits vascular endothelial growth - reduces neovasc
laser photocoag
Diabetic retinopathy
new, permanent loss- most common reason- 25-76
glycolyation of collage of blood veselss- capillary wall breakdown- microaneurysms
blot and dot hemorrhage, cotton wool spots, hardexudates!!- nonproliferative due to microaneurysms- not associated with vision loss- strict glucose control at this point
proliferative: neovasc- vitreus hemorrhage- use bvacizumab
maculopathy: central vision loss, macular edema or exudates- do laser
htn retinopathy
arterior narrowing- silver wiring is severing copper is moderative
av nicking
flame shaped hemorrhage, cotton wool spots
papilledema
retinal detach
retinal tear- detaches from the choroid plexus- myopia and cataracts at risk
flashing lights,floaters, curtain coming down in peripherary intially- loss of central visual field- no PAIN!
keep patient supine- don’t use miotic DROPS!
corneal abrasion or foreign body
contact lesne wearers- cipro
abx: topical erythro, polymixin/trimethoprim, cipro, sulfacetamide
rust ring- rotating burr
CHECK ACUITY FIRST
viral conjunctivitis
ADENOVIRUS!- same cause as acute bronchitis!
watery, punctate staining on slit lamp
supportive
allergic
cobble stone mucosa- chemosis (conjunctiva swelling)
olapatdine- topical h1 blockers!- antihistamine
pheniramine/naphazoline
topical corticosteroids
bacterial
most comon is S. arruesus, s. pneumo
erythro, fluroquinolines, sulfonamides, aminoglycosides
if chalmydia or gonorrea- admit for IV
2-5 day old- gonocooccal
day 5-7: chalmydai
chemical burns
IMMEDIATE IRRIGATION!!! alkali is worse than ACID use lactated ringers or normal saline ph and visual acuity after irrigation irrigate until 7 to 7.3 ABX: moxi and CYCLOPLEGIC AGENTS- atropine drops
orbital cellulitis
usually SECONDARY to sinus infections- ETHMOID
proptosis, decreased vision, pain with ocular movement
high resoluation CT SCAN!!!- inection of the fat and ocular muscles
IV ABX : vanco, clinda, cotaxime, unasyn
amox if preseptal
preseptal: no changes in vision and no pain with ocular movemnt- eyelid and periocular tissue infected
strabismus
deviated inward - esotropia
exotropia- deviated outward
hirschberg corneal light reflex testing
cover and uncover test- to determin eangle of strabismus
patch therapy-
corrective surgery
treat before 2 years old- can’t be corrected after
ekratitis
MC- bacterial- psueodmonas!!
ciliary injection, corneal ulceration
hazy cornea- bacterial-
hsv - dendritic lesions- trifluradine, po acyclovir
uveitis
anterior: iris and ciliar body
posterior: choroid inflammation
HLA b027!!
infectious: cmv, toxoplasmosis, syphillis, TB
unilateral ocular pain , redeness, photophobia
consensual photophobia- ciliary infection, inflammatory cells and flare within the aqueous humor
anterior- topical corticosteroids- cycloplegics!
posterior- systeic cortciosteroids
cataract
lens opacification- agining- cigg smoking
blurred vision over month/years
TORCH- toxo, rubella, CMV, HSV, syphillis
retinoblastoma
absent red reflex- white pupil
papilledema
optic nerve disc swelling- increased intracranial pressure
HTN- pseudotumor cerebri, or lesion, severe HTN, cerebral edema
tx: DIURETICS AND ACETAZOLAMIDE- decreases production of queous humor and CSF
optic neuritis
MC- MULTIPLE SCLEROSIS, ethmabutol!!
demyelination of optic nerve
loss of color vision, loss of vision in one side- central scotoma, visual fields defects, worse with eye momvement pain
MARCUS GUNN PUPIL- affected eye seems to dilate in the flashlight swinging test- AFFERENT pupillary defect
IV methylprednisolone with corticosteroids
argyll-robertson pupil
pupil constricts on accomodation but does not react to bright light!!
neurosyphillis
optic nerve defect
total blindeness of same eye
optic chiasm defect
bitemporal heteronymous hemianopsia- sides can’t see peripheral on both eyes