* Conjunctival epithelium undergoes hyperplasia and sends downward projection into sub-epithelial tissue. * Adenoid layer shows marked cellular infiltration by eosinophils, lymphocytes, plasma cells and histiocytes. * Fibrous layer show proliferation which later undergoes hyaline changes. *Conjunctival vessels also show proliferation, increased permeability and vasodilation.
Vernal keratoconjunctivitis
Phlyctenular keratoconjunctivitis
Superior limbic keratoconjunctivitis
Adenoviral keratoconjunctivitis
Ocular larva migrans
Actinic conjunctivitis
Ligneous conjunctivitis
Ocular rosacea