Glaucoma is an eye disease where the optic nerve, which connects your eye to your brain, becomes damaged, causing vision loss.
It usually isn’t diagnosed until a person has had the condition for many years, as it often doesn’t cause any symptoms in the early ages. It’s not until peripheral vision is affected that the condition is picked up during an eye test.
Over time, they will seem to be looking through a tunnel and if not treated quickly, it can lead to permanent loss of vision.
But there are early earning signs that can signal glaucoma. The NHS lists these five symptoms as possible signposts of the disease.
A red eye
A red eye could be caused by a minor complaint such as conjunctivitis or a burst blood vessel, but it could be a more serious problem, says the NHS.
If you also feel ill and your vision has become cloudy, it could be a sign of glaucoma.
Glaucoma sufferers often experience headaches as fluid in the eye doesn’t drain sufficiently, leading to increased pressure. If the headache is felt around your eyes, it could be glaucoma.
Glaucoma headaches are often mistaken for migraines, but if they are accompanied by other symptoms, be sure to speak to a GP.
Seeing rings around lights
The appearance of halos – rainbow-coloured circles – around light sources is another symptom of glaucoma.
Sensitivity to light could also signal the eye condition.
Hazy or blurry vision may occur in glaucoma sufferers, particularly after strenuous activity.
This may fade quickly or stay for several hours, or even longer.
Feeling sick or vomiting
Vomiting may be a sign of glaucoma if pressure in the eye is so intense that the agony brings on nausea.
The body’s link between the eyes and the stomach is what brings on the vomiting, which then might trick people into thinking they have a stomach problem.
It’s estimated that 480,000 people in the UK are living with primary open-angle glaucoma, the most common form of the disease. Having diabetes makes a person more susceptible to the condition.
One third of British adults admit to being overdue for an eye test, which could pick up early problems with peripheral vision.