In the early stages of the disease, adverse symptoms are rarely experienced. Glaucoma produces an increase in pressure within the eye that causes nerve damage at the optic disc.


The disease starts with loss in the peripheral part of the vision, this eventually leads to, if left untreated, loss in central vision.


Therefore a regular eye examination is essential for all people above the age of 40. This should be carried out every 2 years on all patients, apart from people who have a family history of glaucoma when an annual examination is considered necessary. Treatment is most commonly in the form of drops prescribed by an eye doctor which control the progression of the disease.