It is characterized by itching,hyperamia,and mild papillary response.
Etiology
It occurs due to subsiquent mast cell activation,following exposure of ocular surface to airborne allergens such as tree and grass pollens.
Pathology
It comprise vascular,cellular and conjunctival responses.
Symptoms
- Intense itching and burning sensation
- Watery mucus,stringy discharge
- Mild photophobia
Signs
- Hyperamia and chemosis
- Mild papillary reaction may be seen on palpebral conjunctiva
- Edematious lid is often present
Treatment
- Artificial tears like carboxymethyl cellulose which provide soothing effect
- Dual action antihistamines and mast cell stabilizers such as olopatadine and ketotifen
- Topical vasoconstrictors provide immediate decongestion
- Steroids eyedrops should be avoided. However these may be prescribed for short duration in severe and non responsive patients.
