Well, in my opinion, nearsightedness can not lead to glaucoma. So you do not need to worry about it. Generally speaking, glaucoma is a kind of eye disease, which can be caused by a severe eye infection, injury, blocked blood vessels or inflammatory conditions of the eye. But there is no evidence which shows that nearsightedness can cause it. But you need know that glaucoma can be dangerous, for it can cause damage to the optic nerve as a result of increased pressure within the eye. To prevent it, some lutein can be used. Also, drinking more water and eating fruits are also important. In the end, just pay attention to cigarette smoke, air pollution, and heavy alcohol consumption too.