Peripheral vision includes vision that occurs outside of the center scope of your stare. There are multiple points of vision that are considered to be non-central points. The loss of these points of vision can result in what is known as peripheral field defect or more commonly, tunnel vision which can be compared to looking through a narrow tube.
Early signs of this condition include difficulty seeing in dim lighting and having trouble navigating while walking.
What Causes Peripheral Vision Loss?
Optic nerve damage is the most common cause of peripheral vision loss which is often an effect of glaucoma.
Other common causes of peripheral field defects include:
- Eye strokes or occlusions
- Detached retina
- Retinitis pigmentosa
- Brain damage from stroke, disease or injury
- Concussions (head injuries)
- Temporary peripheral vision loss during a migraine
Peripheral vision loss, even temporary, can be the sign of an underlying condition and should receive prompt medical care.
Treatment Options for Peripheral Vision Loss
Because glaucoma is the most common cause of peripheral vision loss, there is not a “quick fix” solution to the vision loss like contacts or glasses. However, in some cases of peripheral vision loss, a lens known as a prism can be added to the eyeglasses prescription to increase the scope of vision.
The key is to initiate treatment as early as possible, especially when no symptoms are present, if possible.
Patients with glaucoma can prevent peripheral vision loss by staying on top of their medications to control eye pressure which can further damage the optic nerve.
For people who experienced vision loss due to a brain injury, visual therapy can help regain at least some visual field that was lost.
Lastly, patients who have been diagnoses of permanent peripheral vision loss can benefit from special eyewear or optical devices to aid with mobility.
