Week 2 Ophthalmology and ENT Flashcards
non painful red eye conditions
conjunctivitis (allergic, viral, bacterial, chemical)
dry eye syndrome
subconjunctival hemorrhage
If acute otitis media is associated with conjunctivitis, that’s commonly due to _____ bacteria. So treat with ____
haemophilius influenza
Amoxicillin clavulanate
Viral conjunctivitis key findings
Adenovirus
- redness, itchy, swollen conjunctiva
- tearing, clear watery discharge
- fever, headache, anorexia, malaise
- blepharitis
- pharyngitis with enlarged preauricular nodes
- concurrent URI
Adenoviral conjunctivitis management
- Cool compresses
- Lubricating drops
- Good handwashing
- avoid touching the eyes,
- don’t share any towels
- wash pillowcases
- resolves in 1-2 weeks
- NO prophylaxis antibiotics
- Antihistamine ophthalmic for sx relief
If non responsive conjunctivitis in sexually active adults, suspect
chlamydial conjunctivitis
- concurrent genital infection
Bacteria conjunctivitis key findings
- Yellow - green purulent discharge
- Encrusted and matted eyelid on awakening
- injected conjunctiva
- photophobia
- petechiae on bulbar conjunctiva
- normal vision
bacterial conjunctivitis: what organisms?
haemophilus influenzae, strep pneumoniae, and staph aureus.
H flu more common in children (dec-april)
Bacterial conjunctivitis: adult management vs children
adult: conservatively if not immunocompromised = observe or empiric antibiotic x 1 week
- if Chlam/gon = refer CDC
children: empiric (trimethoprim + polymyxin B sulfate ophthalmic soln, erythromycin 0.5% ointment to cover H influ),
Older children/teens = watch and wait! resolves in 1 week no matter what
Allergic conjunctivitis results from ____ and is associated with ___
igE mediated hypersensitivity
a/s with atopic disorders, asthma, atopic dermatitis, seasonal, perennial plant
allergic conjunctivitis sx’s and on exam
- bilateral severe eye itching, teary
- rhinitis
- clear, white stringy mucoid discharge
- teary boggy conjunctiva
- allergic shriners/dark circles
allergic conjunctivitis management
Identify/avoid the allergen
Cold compresses and artificial tears
Oral antihistamines if systemic allergy sx’s
- NO antibiotics/steroids
- eye drops:
- Ketotifen (antihistamine)
- Patanol or Olopatadine (prescription); Used > 3 yrs old
how does chemical conjunctivitis occur
Benign: fumes, smoke, chlorine or toxic
- if causes severe pain, vision disturbances = refer!
vernal conjunctivitis
type of allergic conjunctivitis
common in childhood and spring
bilateral
more severe
atopic conjunctivitis
common in >50 yrs old
bilateral itchy, burning, tearing
tx w mass stabilizer eye drop or refer
refer!
dry eye syndrome sx’s
- foreign body sensation
- scratchy gritty feeling stinging, tearing
what test to do for dry eye vs lacrimal problem? Explain.
schirmer test
assesses aqueous production. using filter paper and placing it in the inferior culdesac, measure tear production after 5 mins. < 5 mm = tear deficiency
dry eye management and treatment
Avoid causative medications
anticholinergics or diuretics
Avoid air conditioners or fans
1st line: preservative-free lubricants (OTC) if not work refer and cyclosporin rx
Subconjunctival hemorrhage
- benign
- from increased intrathoracic pressure (coughing sneezing, straining)
- no pain
- common in HTN or blood thinner pts
- resolves in 2 weeks
what are ocular adnexal disorders? Name them.
disorders of structures that surround the eye
Blepharitis
Hordeolum (stye)
Chalazion
Nasolacrimal duct obstruction
Preseptal and orbital cellulitis
flakey, yellow scaly debris over eyelid margins on awakening
inflammation of eyelid or follicles
Blepharitis
blepharitis management (3)
- 1st line: warm compresses x 10 mins several times a day
- dilute baby shampoo with warm water and just cleanse the eyelid every day
- Topical antibiotic is only needed if due to a staph infection.
usu resolves with conservative treatment.
If it’s persistent or severe, doxycycline often not needed.
Define hordeolum (stye) and symptoms
Acute infection and inflammation of eyelid gland d/t to a blocked meibomian gland
Staph aureus
- contact lens use
- painful furuncle/nodules
- NO injection, NO discharge, NO redness
- foreign body sensation
resolves 1-2 weeks (ruptures from compresses or I&D)
Define chalazion and management
Chronic, inflammation of eyelid from lipogranuloma of meibomian
non-painful, non-infectious nodule; results from hordeolum
Warm compresses, gentle massage, weeks to resolve, I&D if persistent
Hordeolum vs Chalazion
chalazion results from a hordeolum
Chalazion: located AWAY from the eyelid margin, more firm, and it’s non-tender, deeper in eyelid
Hordeolum: closer to the eyelid margin
Nasolacrimal duct obstruction (dacryostenosis) symptoms and management
- tearing, mucoid discharge
- blepharitis
- painful, tenderness/swelling over duct
- elevated WBC from exudate
manage:
- Daily massage of the lacrimal duct. If it doesn’t resolve by 12 months = refer for probing procedure.
Complications from dacryostenosis (2)
Dacryocystitis (inflammation of duct = infection)
I&D or systemic antibiotics
Peri/orbital cellulitis
preseptal cellulitis aka periorbital cellulitis sx’s and treatment
- NOREFER!
- staph aureus
- superficial infection
- NO painful eye movement, eye is spared, no fever
- infection that’s ANTERIOR to orbital septum
- tx < 1 yrs: hospitalization, IV antibiotics
- >2 yrs: mild (no vision changes, eye moves, no ptosis):
- oral amoxicillin, cefdinir, cefpodoxime 1-2 weeks
- warm soaks 2-4 hrs x 15 mins
- f/u 24 hrs
- oral amoxicillin, cefdinir, cefpodoxime 1-2 weeks