Glaucoma is a complicated eye disease where damage to the optic nerve results in vision loss. Typically the condition is classified as either primary open angle glaucoma where no symptoms occur until significant vision loss has occurred, or angle closure glaucoma where certain noticeable symptoms occur followed by very rapid vision impairment.
If untreated, glaucoma will eventually cause complete loss of vision. And even with treatment approximately 15 % of affected individuals lose vision in at least one eye within 20 years. Some symptoms to watch out for include the following.
1. Gradual loss of peripheral vision
This can be a potential warning sign for primary open angle glaucoma. A gradual loss of peripheral vision usually affects both eyes. The sensation is experienced as seeing through a narrow tube and can be caused by damage to the optic nerve.
Symptoms of peripheral vison loss can also include difficulty seeing in poorly lit spaces and the decreased ability to navigate while walking. It can be difficult to detect a loss of peripheral vision especially if it occurs gradually over time, so it becomes important to get regular eye checkups with a specialist.