What's with the tears in my eyes?

Eyes always shed tears, to analyze the causes of tears, you can consider two factors: the first, the most common is caused by the obstruction of the lacrimal passage system, the main performance is frequent tears, whether it is tears in the wind, or tears at home, serious cases are accompanied by pus, this kind of lacrimal passage washing examination, can be clearly diagnosed whether there is lacrimal passage stenosis or lacrimal passage obstruction. Second, irritation symptoms, infectious lesions or intraocular foreign bodies, or accompanying symptoms caused by glaucoma.