Well, yes, cataracts can lead to watery eyes. As we know that cataracts occur when there is a buildup of protein in the lens that makes it cloudy. In that way, it will just prevent light from passing clearly through the lens, causing some loss of vision. And it can be caused by irritants, so at that moment, it will lead to some other eye problems, such as blurry vision, watery eyes. To treat it, you can just try some lutein to heal it. Also, you should pay attention to cigarette smoke, air pollution, and heavy alcohol consumption which can be harmful to your situation.