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Tunnel Vision2022-03-07T10:38:40+00:00

Tunnel vision is the loss of peripheral vision

This could be a sign of glaucoma, and should be treated straight away

Tunnel vision is the loss of peripheral vision

This could be a sign of glaucoma, and should be treated straight away

Left untreated, tunnel vision can lead to blindness

Discover more about this symptom and next steps

Tunnel vision incidence / prevalence

Tunnel vision is a visual field defect that involves a loss of peripheral vision. A loss of peripheral vision could be a sign of glaucoma, and should be treated straight away.

There are many different causes, but some, like glaucoma, can eventually lead to blindness if left untreated. You should therefore see an eye doctor straight away if you suffer from tunnel vision.

There are many different causes of tunnel vision, and some are more serious than others.

Damage to the optic nerve

The optic nerve transmits signals from the eyes to the brain. Any damage to the optic nerve, either through trauma or disease, can cause tunnel vision to occur. Glaucoma is a fairly common eye disease that can damage the optic nerve by increasing the pressure inside the eye. Glaucoma is associated with a slow but steady loss of peripheral vision, and can lead to blindness if left untreated.

Damage to the retina

Damage to the peripheral areas of your retina can affect your peripheral vision. A condition called retinitis pigmentosa is known to cause tunnel vision by damaging the retina, but it is quite rare.

Damage to the brain

A stroke or loss of blood to the brain can also result in a loss of peripheral vision.

Temporary tunnel vision

Sometimes, tunnel vision can occur temporarily when the body produces high levels of adrenalin. Extreme panic, stress or anger can all cause temporary tunnel vision. Alcohol and drugs have also been shown to have an effect on peripheral vision. In these cases, normal vision will usually return without treatment.

Tunnel vision occurs when your peripheral or ‘side’ vision, deteriorates, or is lost altogether. The result is that you may only be able to see things in a small circle directly in front of your eyes, as if you were looking down a tunnel.

It may sound like an obvious symptom but many people don’t realise they have tunnel vision when the loss of peripheral vision occurs over some time. That’s why it’s important to get regular check-ups from an eye specialist, especially for those over 40 who are more at risk of developing glaucoma.

Treatment depends on the cause. In the case of glaucoma, early detection and treatment can halt the loss of peripheral vision altogether, In any case, it’s important to be seen by an expert as soon as possible if you have tunnel vision.

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Additional resources on treating tunnel vision

Learn more about treating tunnel vision from authoritative sources.

Peripheral vision problems mean that you don’t have a normal, wide-angle field of vision, even though your central vision may be fine.

Moderate and severe cases of peripheral vision loss create the sensation of seeing through a narrow tube, a condition commonly referred to as “tunnel vision.”

Symptoms of peripheral vision loss also can include difficulty seeing in dim light and decreased ability to navigate while you are walking.

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