Yes, nearsightedness is a high degree of myopia, which is a risk factor for glaucoma. Glaucoma can be prevented by earlier diagnosis, effective treatment and compliance with treatment. You should avoid trauma to the eyes and receive prompt treatment once the eyes are inflamed or the body suffers from other diseases.
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.
Yes, it is quite possible. Glaucoma refers to increased intraocular pressure which would damage the optic nerve endings and hence impair the vision. Vision problems, including myopia, hyperopia and astigmatism, might cause glaucoma. The disorder and dysfunction of dioptric system would lead to dysfunction of ciliary muscle and imbalance of aqueous humor and sharply increased intraocular pressure. Because glaucoma is the complicated symptom on eyes from various organs dysfunction, so to prevent it, you should treat the underlying causes. First of all, keep a happy and relax mood and avoid too much emotional fluctuation. The most common cause of glaucoma is long term emotional stimulation. Secondly, live a healthy life. Good rest with proper exercises and light but nutritious diet. Quit caffeine or smoking which would increase the IOP. Thirdly, keep good habit of using eyes. Don't read under strong light and don't prolong the working time to strain eyes. Get suitable eyeglasses when there is a vision problem. Once high IOP detected, you should visit the eye specialist on a frequent basis to monitor the IOP.