How will it affect my sight?

Typically the peripheral vision is lost first and so goes unnoticed because the central vision, for reading and recognising faces, remains good. One eye can also make up for vision loss in the other eye, until both eyes have lost vision in the same area. If left untreated, the damage continues ('progresses'), usually slowly over years, and may eventually affect your ability to drive or make you more likely to fall. In glaucoma, vision loss is permanent and cannot be recovered. However, with early diagnosis, careful monitoring and regular use of the treatments, the vast majority of people with glaucoma retain useful sight for life.