Side effects of allergy eye drops vary depending on the classification of the drug in the eye drop. Antihistamine eye drops are available over the counter. Corticosteroid and mast cell stabilizer drops are prescribed by a doctor. When using eye drops, a doctor should be notified if any symptoms are severe or prolonged.
Antihistamine Eye Drops
Antihistamine eye drops work by blocking the histamine that is produced in response to an allergic reaction. Examples of antihistamine eye drops include Zaditor and Patanol. According to Drugs.com, common side effects include blurred vision, burning or stinging, dryness of the eye or eye pain.
If any severe side effects occur, a doctor should be consulted immediately. Anaphylaxis, a severe allergic reaction, would be an example of a severe side effect. Hives, dizziness or trouble breathing indicate anaphylactic shock.
Corticosteroid Eye Drops
Corticosteroid drops are prescribed by a doctor to treat inflammation in the eye associated with allergies. An example of a corticosteroid eye drops is Fluor-Op. According to Drugs.com, common side effects include blurred vision, taste changes, and temporary burning or stinging.
Corticosteroid eye drops, although rare, can cause anaphylaxis. When using this medication, soft contact lenses cannot be worn.
Mast Cell Stabilizer Eye Drops
Mast cell stabilizer eye drops strengthen mast cells to prevent them from releasing histamine. Examples of mast cell stabilizers include Cromolyn and Alamast. Like any medication, anaphylaxis can occur but is extremely rare.
According to Drugs.com, the most common side effects include stinging of the eyes, dry eyes or puffy eyes.
