Hi there. So, here is a general info sheet on amlodipine, the calcium channel blocker. https://www.drugs.com/amlodipine.html. Vision issues are considered rare. Here is a comprehensive list of side effects: https://www.drugs.com/sfx/amlodipine-side-effects.html. It also lists red, irritated eyes as a side effect. I think I'd let your doctor know you are having watery eyes.