Old man eyes always shed tears what's going on

Lacrimation is an increase in reactive secretion of the lacrimal gland, resulting in tears flowing out of the eyes. It can be seen in eyelid entropion, trichiasis, conjunctivitis, keratitis, iridocyclitis, etc. It can also be seen in conjunctiva (cornea) foreign bodies or various injuries to the eyeball. Can be caused by inflammation, tumor, stones, trauma, foreign bodies, drug toxicity and other factors; nasal obstruction can also cause tears overflow. Please go to the hospital for specific diagnosis and symptomatic treatment.