Glaucoma is a group of conditions characterised by optic nerve damage and loss of field of vision. Glaucoma is uncommon among people under the age of 40, but its prevalence increases with age. Other risk factors include raised intra-ocular pressure, a family history of Glaucoma, and ethnicity. The two most common types of Glaucoma are Primary Open Angle Glaucoma (POAG) and Primary Angle Closure Glaucoma (PACG).
Most forms of Glaucoma do not show symptoms in the early stages and thus patients often present for treatment only after vision loss has occurred. Treatments, which include medication, laser treatment and surgical interventions, cannot restore lost sight but are able to preserve the patient’s remaining visual function.