According to Bezan, males appear to be affected more frequently by vernal and atopic conjunctivitis than females. Most sources agree that persistence after age 20 years is uncommon. In infants, the eruption particularly involves the face, scalp, and extensor surfaces. In older children and adults, the neck and antecubital or popliteal areas more commonly are involved. Adult patients usually have a history of infantile disease that may require anecdotal history or contacting their caregivers from infancy.
Most patients have a familial occurrence of symptoms of atopy.
In severe cases, generalized eruptions over the entire body may occur. Unlike vernal conjunctivitis, the lower tarsus is involved more frequently. Hyperemia, chemosis, and discharge are more common than papillary or cobblestone reaction. These patients usually are older children or young adults. These cataracts tend to evolve rapidly and may opacify within 6 months.