Occular Allergies Flashcards
percent of patients worldwide that experience
ocular allergy
15-25%
Pathogenesis of hay fever
IgE mediated
Clinical presentation of hay fever
Palpebral papillary hypertrophy, develop rapidly, short lived episodic,
severe seasonal inflammation of the
superior tarsal conjunctiva thought to be due
to an allergic reaction
Vernal Keratoconjunctivitis
Pathogenesis of Vernal Keratoconjunctivitis
Type I and IV hypersensitivity reactions
Clinical presentation of Vernal Keratoconjunctivitis
Chronic, recurring, Itchiness, Photophobia, Palpebral papillary hypertrophy, Horner-Trantas Dots
Chalky mounds of conjunctiva around the limbus,
which are actually collections of degenerated
epithelial cells and eosinophils
Horner-Trantas Dots
Pathogenesis of Atopic Keratoconjunctivitis (AKC)
Primarily type IV
Clinical Presentation of AKC
Year-round disease, Older patients, whitish cornea,
Pathogenesis of Contact Lens-induced Conjunctivitis
residues/debris left on the contact lens
Hallmark of contact lens-induced conjunctivitis
Superior tarsal papillary hypertrophy
Clinical presentation of Giant Papillary Conjunctivitis
Large papillae (>0.3mm) on superior tarsus
Pathogenesis of Contact Dermatopblepharitis
Topical application of medication, cosmetics, etc.
Clinical Presentation of acute Contact Dermatopblepharitis
Itching, eyelid erythema and swelling,
conjunctival redness, chemosis
Clinical Presentation of chronic Contact Dermatopblepharitis
Eyelid erythema, leathery thickening, scaling