Which drug is primarily used to treat inflammation rather than for pupil dilation?

The choice of nonsteroidal anti-inflammatory drugs (NSAIDs) is appropriate because these medications are specifically designed to reduce inflammation. NSAIDs work by inhibiting enzymes that are involved in the inflammatory process, which helps decrease swelling, redness, and pain. They are used in various ophthalmic conditions where inflammation of the eye tissues is a primary concern, such as after surgery or in cases of allergic conjunctivitis.

In contrast, the other options focus primarily on pupil dilation or other effects rather than specifically addressing inflammation. Atropine and tropicamide are both medications used to dilate the pupil for diagnostic or therapeutic purposes, while antihistamines are used primarily for their antihistaminic effects, which help alleviate allergy symptoms. Hence, NSAIDs stand out as the correct choice for treating inflammation specifically.