7 Conjunctiva - Allergic Conjunctivitis Flashcards
allergic conjunctivitis
type I
degranulation of mast cells in response to IgE
allergic rhinoconjuntivitis
seasonal - grass
perennial - dander, dust, fungus
seasonal allergic conjunctivitis
hypersensitivity to au=irborne antigens
no PAN
perennial allergic conjunctivitis
less common than seasonal
milder than seasonal
px may deny allergy hx
allergic conj tx
avoid allergen cold compresses irrigation antihistamines mast cell stabilizers topical steroids/NSAIDs
antihistamines
immediate relief
topical drops - emadine
systemic - claritin, reactine, benadryl
mast cell stabilizers
topical drops - opticrom, alocril, alomide
for long term prevention
antihist + MC stabilizers
topical drops - pataday, zaditor
immediate relief and long term prevention
antihist + vasoconstrictor
topical drops - casocon A, naphcon A, visine
short term relief of occasional sx
topical steroids/NSAIDs
topical drops - alrex (steroid), acular (NSAID)
useful if inflammation part of allergic resp
vernal keratoconjunctivitis (VKC)
recurrent bilat inflammation onset 7, mostly males remit by late teens common in warm/dry climates peaks spring, summer s: palpebral disease (hyperemia, macropapillae, ig papillae and mucus), limbal disease (Horner-Trantas dots), corneal complications (mucus sheets, macroerosion, plaques, scars)
atopic keratoconjunctivitis (AKC)
adulthood
more severe than VKC
eczema, asthma
VKC & AKC tx
similar, but AKC less responsive avoidance, cool compresses, hygiene MC stab, NSAID antihist, steroids prophylactic antibiotics
giant papillary conjunctivitis (GPC)
mechanically induced by CL
superior lid papilla
more irritation after CL removal
mechanical tx: remove protuberant sutures and polish/replace prosthesis
inflam tx: hygiene, replace CL more often, decrease CL wear
