Most patients do not have any symptoms from having glaucoma initially, until they undergo extensive damage to the optic nerve fibers and begin to experience loss of their peripheral visual field. By the time this starts to occur, the glaucoma usually has advanced to a late stage of the disease. Preventing this from occurring is the thrust of good glaucoma management.

There is a small group of patients who will experience some symptoms of headache and fullness when their pressure reaches a higher level, but the majority of patients will never have any symptoms until the pressure reaches the mid to upper 30mm.

Abnormal Optic Nerve - Advanced-Stage Glaucoma