Allergic conjunctivitis

Allergic conjunctivitis is due to excessive sensitivity to foreign substances (allergens) with which the eye comes into contact.


There are several types of allergic conjunctivitis but the allergic rhinoconjunctivitis is the most common form. It is divided into:

  • seasonal, ie limited to certain periods of the year and is usually caused by the presence of pollen
  • perennial, caused, for example, by dust mites and animal hair.


In addition to the unspecific symptoms common to all forms of conjunctivitis, itching is the most common and important symptom and differs the allergic conjunctivitis from other forms of conjunctivitis

Symptoms are generally binocular, meaning they affect both eyes.


Diagnosis occurs both through the examination of the signs and symptoms that the ophthalmologist identifies and through the symptoms of allergies that involve the whole body.

Laboratory testing is also carried out.


Therapy is intended to prevent or minimize contact with the responsible allergen.

The use of antihistamines and lacrimal substitutes (also called artificial tears) is also foreseen, associating, in the most severe cases, cortisone eye drops.


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