Dear Lucy: My right eye is very red, but it’s not itchy, so I don’t think I have “pinkeye”/conjunctivitis. However, I do feel some pain, or maybe pressure, which bothers me enough that that eye releases some tears occasionally. Any idea what this might be? —Red Eye
Dear Lucy: What causes eye tics, and is there anything I can do to avoid them? I’ve heard it could be the result of a magnesium deficiency or too much calcium. —Ticked Off
Dear Lucy: I’m a Ph.D. student, and I spend at least eight hours a day in front of my computer. How can I protect my eyes? I have perfect vision, and I’d like to keep it that way. —Twenty-Twenty
