"Glaucoma is a disease in which the optic nerve is damaged, leading to progressive, irreversible loss of vision. It is often, but not always, associated with increased pressure of the fluid in the eye."
"Glaucoma has been nicknamed the "sneak thief of sight" because the loss of vision normally occurs gradually over a long period of time and is often only recognized when the disease is quite advanced. Once lost, this damaged visual field can never be recovered. Worldwide, it is the second leading cause of blindness."
"Glaucoma affects 1 in 200 people aged fifty and younger, and 1 in 10 over the age of eighty. If the condition is detected early enough it is possible to arrest the development or slow the progression with medical and surgical means."
"There are rarely any symptoms in the early stages of the disease so regular eye checks by qualified professionals are important. Ophthalmologists and optometrists will diagnose glaucoma on the basis of intraocular pressure, visual field tests and optic nerve head appearance.
Patients will sometimes notice patchy loss of peripheral vision or reduced clarity of colours and these people may benefit from a review by an eye specialist.
Symptoms of angle closure glaucoma can include pain in or around the eye ball, headache, nausea/vomiting and visual disturbances, for example halos around lights. In some cases there are no symptoms."
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