There are many different types of glaucoma with differing symptoms, so it is important to have regular eye exams, as most of the time patients are asymptomatic in the early stages.
Glaucoma is known for its ability to sneak up on patients because there is no pain experienced or produced, as well as unnoticed symptoms for most cases. Glaucoma is often detected through damage chronically caused to the optic nerve. Once the disease has progressed, people may begin to notice reduced peripheral vision, which is sometimes referred to as “tunnel vision”.
For some cases of glaucoma, there is pain experienced. For example, acute angle closure glaucoma is characterized by symptoms such as eye pain, dilated pupils, loss in vision, eye redness, headaches, nausea and vomiting. It falls under the category of “narrow angle glaucoma”.