Yes, most of them can cry tears. It depends if their lacrimal gland are damages. If not, they can cry as anyone else can. You know, there are many factors that cause blindness. If they still have good lacrimal gland, it still work. But if their lacrimal gland damages, they can cry but no tears like most of us. Also, if they suffer tear duct blocked tear ducts, also, they canâ€™t cry with tears.
Yea, blind people can also cry tears; I have ever seen a blind man cry. A variety of factors can lead to blindness, but in general, the lacrimal gland will not be damaged. Therefore, though they are unable to see things, they can cry tears. Similarly, a dumb person can also smile.