ENT Flashcards
Most common source and causes of viral conjunctivitis
Swimming pools
Adenovirus
What type of LAD is common in viral conjunctivitis
Preauricular
Describe viral conjunctivitis discharge
Watery or mucous can cause minimal crusting
Allergic conjunctivitis is an ____ mediated disease
IgE ; with mast cell activation and production of histamine and tryptase
How does allergic conjunctivitis present
Gritty sensation
Bilateral chemo sis // injection
Rhinorrhea
Sneezing
STRINGY COBBLE-STONING MUCOSA
BACTERIAL conjunctivitis with contact lens wear you want to consider what
Pseudomonas infection
If bacterial conjunctivitis is due to HIB or strep how long will they likely be effected
5 weeks
Patients often wake up how with bacterial conjunctivitis
Eyes glued shut!
Psuedomonas bacterial conjunctivitis is treated how
FQ
Gonoccal or chlamydia conjunctivitis is treated how
G = Ceftriaxone
C = Tetracycline
Bacterial conjunctivitis is rarely what?
Pruritic
MC cause of optic neuritis and what other 2 things should you think
MS
Sarcoid and recent viral infection
What age range is commonly effected by optic neuritis
20-40 yr old women
What is positive funcdoscopic for option neuritis
Enlarged optic disk [edema]
What color vision is lost in optic neuritis
Red
What is the defect in optic neuritis
RAPD +
[MARCUS GUNN PUPIL]
Relevant affarent pupillary defect
Pupil unilateral weak constriction ; with contralateral bilateral decreased constriction ability
If yo suspect MS in optic neuritis do what?
Get MRI ; might have periventricular patches
Mainstay optic neuritis treatment
Corticosteriods
Most common cause of orbital cellulitis
Bacterial sinusitis @ the Ethmoid sinus by Staph. A
Orbital cellulitis often has what
Diplopia + affarent pupillary defect
Image of choice in orbital cellulitis
High Res CT
Difference between wet and dry aged macular degeneration
Wet = Rapid onset FLOOD of vision loss [neovascular]
Dry = Drusen bodies with vision loss [atrophic]
Metamorphosia is really common in what
Orbital cellulitis
Who gets intravitreal anti-VEGf injection?
Wet Aged Macular Degeneration
3 types and most common retinal detachment
Rhegmatogenous = MC
Tractional
Serous
How does retinal detachment happen
Hole in the retina
Influx of fluid behind the retina and epithelium
Causes separation between the retina and pigment epithelium
Patients with retinal detachment often have __ and present s/p
Myopia
Cataracts surgery
Sxs of retinal detachment
Curtain over unilateral visual field
Flashes and floaters
PAINLESS