ENOT/Ophthalmology Flashcards
Organism that causes acute sinusitis?
Strep pneumoniae
1st txt for acute sinusitis?
Augmentin
Dx of acute sinusitis?
CT scan
Organism that causes chronic sinusitis?
staph aureus
Acute vs. chronic sinusitis?
< 4 weeks
> 12 weeks
What causes allergic rhinitis?
IgE mediated reactivity to airborne antigens
Pt has boggy turbinates, allergic shiners and allergic salute
allergic rhinitis
Overzealous use of decongestant drops or sprays can cause?
Rhinitis medicamentosa
Overuse of what two drugs can cause Rhinitis medicamentosa?
Oxymetazoline
Penylephrine
Txt for rhinitis?
intranasal decongestants
Txt for pt with severe allergic rhinitis who fail to respond to dx thx and allergen avoidance
immunotherapy
2mm round ulceration with a yellow gray center surrounded by a red halo on the left buccal mucosa?
apthous ulcers
Tx for apthous ulcers?
symptomatic or “Magic swizzle”- liquid Bendryl and magnesium hydroxide
Another name for apthous ulcer?
canker sores
crusting, scaling, red rimming eyelid and eyelash flaking with hx of seborrhea and rosacea?
Blepharitis
Txt for blepharitis?
baby shampoo and topical abx, warm compresses
What organism causes blepharitis?
staph
crusty eyelids in the am
Blepharitis
Dx for blepharitis?
slit-lamp exam
What gland is affected in Blepharitis?
meibomian gland
What can be cause by chronic eustachian tube dysfunction?
Cholesteatoma
painless otorrhea (brown/yellow discharge w/ strong odor), tinnitus, dizziness, otorrhea
Cholesteatoma
Dx for cholesteatoma?
CT scan and audiogram
Txt for cholesteatoma?
surgical excision and reconstruction of ossicles
MC cause of viral conjunctivitis?
adenovirus
copious watery discharge, scant mucoid discharge with cobblestoning of palpebral conjunctiva?
viral conjunctivitis
txt for viral conjunctivitis?
cool compress, artifical tears, antihistamines
eyes glued shut in the am
bacterial conjunctivits
MC cause of bacterial conjunctivitis in adults?
staph aureus
MC cause of bacterial conjunctivitis in children?
H influenzae
MC cause of bacterial conjunctivitis in neonates?
C. trachomatis
Cobblestone mucosa in the inner/upper eyelid?
allergic conjunctivitis
Txt for allergic conjunctivitis?
topical antihistamine H1 blockers- Azelastine (Optivar)
Txt for bacterial conjunctivitis in adults?
Gentamicin/tobramycin
Txt for bacterial conjunctivitis in newborns?
oral erythomycin
Txt for contact use pseudomonas infection?
Fluoroquinolone - Cipro
Eye infection caused by swimming pool?
viral conjunctivitis
The MC ophthalmologic visit to the ER ?
corneal abrasion
Dx of corneal abrasion?
fluorescein staining w/ slit lamp
Txt for corneal abrasion?
topical abx ointment
How does patching work for corneal abrasions?
no longer recommended bc it can delay healing
What should be done before examining or treating a corneal abrasion?
visual acuity
Dx of corneal ulcer?
fluorescein angiography
dendritic ulcer w/ fluorescein stain
herpes simplex keratitis
Risk factor for contact lens wearers?
corneal ulcer
Txt for corneal ulcer?
IMMEDIATE referral to ophtho
What is dacryoadenitis?
inflammation of nasolacrimal duct or gland
Inflammatory enlargemnt of lacrimal galnd
rapid onset
unilateral severe pain , redness, and pressure
supratemporal region
dacryoadenitis
infectious obstruction of nasolacrimal duct
rapid onset
epiphora
intramedial region
dacryocysitis
Txt of darcyoadenitis?
warm to cool compress & systemic abx
inward turning of lower eyelid?
entropion
outward turning of eyelid?
ectropion
definitive txt for entropion/ectropion?
artificial tears and surgery
MC area for anterior nose bleed?
Kiesselback plexus
MC difficult area to control posterior bleeds?
internal maxillary artery
MC area for posterior nose bleeds?
Woodruff plexus
artery responsible for severe posterior nosebleeds?
sphenopalatine artery
What should pts w/ nose bleeds be asked?
aspirin or ibuprofen use
Txt for anterior nosebleed?
direct pressure
Afrin
Abx
Txt for posterior nosebleed?
posterior ballon packing
sudden ocular pain, halos, cloudy cornea, fixed dilated pupil
aute closure glaucoma
What causes open angle glaucoma?
impaired aqueous outflow through diseased trabecular meshwork
MC glauocoma?
open angle
Peripheral to central vision loss?
glaucoma
central to peripheral vision loss?
macular degeneration
Txt for open angle glaucoma (chronic)
Carbonic anhydrase inhibitor (-Amide)
Timolol
miotic drops (Pilocarpine)
Screening for glaucoma?
< 40 AA q 3-5
> 40 q 2yrs
Mechanism of carbonic anhydrase inhibitors?
reduces production of fluid in eye