What type of drug is often administered to relieve allergy symptoms in the eye?

Antihistamines are often administered to relieve allergy symptoms in the eye because they work by blocking the action of histamine, a substance in the body that contributes to allergic reactions. In the context of eye allergies, histamine can cause symptoms such as itching, redness, and swelling. By inhibiting these effects, antihistamines provide relief from the discomfort associated with allergic conjunctivitis or other allergic responses affecting the eyes.

Mydriatics are medications that dilate the pupil but do not specifically target allergy symptoms. Antivirals are used to treat viral infections, such as those affecting the cornea and conjunctiva, while antibacterials target bacterial infections and would not be effective for allergy relief either. Thus, antihistamines are the most appropriate choice for easing allergy-related eye symptoms.