Eye condition
A group of conditions that damage the optic nerve, often linked to raised pressure inside the eye. The common type causes no pain and no early symptoms, and side vision is lost slowly. Lost vision cannot be restored, but treatment can protect what remains.
At a glance
Have an eye pressure and optic nerve check every one to two years after 40, and earlier with a family history.
Get urgent help
Go to an emergency department or call 1122 for a sudden painful red eye with blurred vision, haloes, headache or vomiting.
The doctor decides which you need. Every test is done at the clinic.