[Conjunctivitis, keratitis, keratoconjunctivitis: role of allergy].

The author has counted 0.85% of conjunctivitis in an unselected allergic population of 2,865. All the causes are explored, microbial, viral, metabolic , ophthalmological, drugs, mechanical, allergic... He describes different forms of conjunctivitis amongst which are those of spring time. The roles of the ophthalmologist and allergist are emphasized for establishment of diagnosis and treatment.