Yes, Medications Can Affect Your Eyes: Here is What You Should Know Many people do not realize that numerous medications—whether prescription, over-the-counter, or even herbal—can have side effects that impact the eyes. Because your eyes are highly sensitive and have many tiny blood vessels and nerves, certain drugs can cause changes in vision, dryness, light sensitivity, or even more serious complications. At Visualeyes Optometry , we often see patients whose eye symptoms ar