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Table 1 Other ocular allergic subtypes and their main characteristics

From: A contemporary look at allergic conjunctivitis

Ocular allergy subtype Demographics and/or associations Primary symptoms and signs
Atopic keratoconjunctivitis (AKC) [10, 15, 18] Male predominance, 30–50 years of age
Perennial, with potential exacerbation in the winter months
Association with atopic dermatitis of the eyelids
Severe ocular itching (ocular surface, eyelids)
Tearing, burning, photophobia, mucous discharge
Significant hyperemia and edema of the conjunctiva (chronic inflammation)
Corneal scarring, neovascularization
Trantas’ dots
Large cobblestone papillae on superior tarsus and/or limbus (chronic inflammation)
Vernal keratoconjunctivitis (VKC) [10, 15, 18] Male predominance, 3–25 years of age
Associated with atopy in 50%
Severe ocular itching
Photophobia, tearing mucous discharge
Trantas’ dots (limbal form)
Large cobblestone papillae on superior tarsus and/or limbus (chronic inflammation)
Corneal ulcer (shield) may form in severe cases