When your eyes are exposed to allergy-causing substances,
- a substance called histamine is released by your body.
- The blood vessels in the conjunctiva become swollen.
- The eyes can become red, itchy, and teary very quickly.
Symptom:
The pollens that cause symptoms vary from person to person and from area to area.
Treatment:
Antihistamine eyedrops: These can reduceĀ
- itching,
- redness,
- swelling associated with eye allergies.
Although these drops provide quick relief, the effect may last only a few hours, and some must be used four times a day.