Symptoms of a disc protrusion usually become prevalent when the protrusion begins to irritate or put pressure on a nerve, which results in the pain that most patients feel. 1  Many symptoms depend on where the affected disc is located and the severity of the protrusion.
Glaucoma is the result of damage to the optic nerve. As this nerve gradually deteriorates, blind spots develop in your visual field. For reasons that doctors don't fully understand, this nerve damage is usually related to increased pressure in the eye.ngle-closure glaucoma. Angle-closure glaucoma, also called closed-angle glaucoma, occurs when the iris bulges forward to narrow or block the drainage angle formed by the cornea and iris. As a result, fluid can't circulate through the eye and pressure increases.
Glaucoma is an eye disease in which progressive damage to the optic nerve results in permanent vision loss. Damage can occur for many years without any symptoms. Therefore, regular eye checks from the age of 45 years are recommended.ey points. 1  Glaucoma is the main preventable cause of blindness in New Zealand. 2  More than 1 in 10 people over 80 years of age have glaucoma. 3  If you are over 45 yrs of age, you should have your eyes checked every 5 years by an optometrist, or every year if you are over 60 yrs.