What drugs affect your pupils? A guide to pharmacologically-induced eye changes
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5 min read
Over 700 prescription drugs can affect a person's eyes, and many illicit substances also significantly alter pupil size. Understanding **what drugs affect your pupils** is key, as these changes are often a visible sign of a substance's effect on the nervous system. The pupils' response provides clues about which part of the autonomic nervous system is being influenced by a particular drug.