As we all know, glaucoma tends to refer to a group of eye diseases that damage the optic nerve( in the back of eye), which carries information from the eye to the brain. You will lose your vision if the nerve is damaged. Multiple but classical complications of glaucoma may be headaches, blurred vision, eye aches or pain , halos around lights, watering eyes and loss of vision. It is worth mentioning that at the first sign of trouble, there are no symptoms of glaucoma unless the disease envolves into a malignant disease. Well, it is really boring to have too many tears or excessive tearing. In general, watery eyes can be signals of a more serious problem in our eyes or even, our body. On safe side, you need to go to see a optician and to see if it is actually caused by glaucoma.