Glaucoma is one of the leading causes of vision loss for people over the age of 50. The optic nerve which connects your eye to your brain can become damaged in glaucoma. It is usually painless and does not cause any symptoms until it is quite advanced. If you lose your vision, it can’t be brought back. It is therefore important to have regular eye health checks which test for glaucoma at an early stage. With early diagnosis, careful monitoring and regular treatment, the vast majority of people retain useful sight for life.