Well, yes, teething can lead to watery eyes. First, you should know that the nerves in your face are all connected and pain can result in other parts of your face reacting to it. So when you suffer teething, it is possible to have watery eyes. Of course, according to some researches, your watery eyes can be a sign of dryness too. As we know that tears are for lubrication and for keeping your eyes clean. And if your tear glands are disordered, it may develop dry eye syndrome, leading to watery eyes. for your situation, just go and see the eye doctor as soon as possible.