
After stroke and other brain injury
Damage affecting the brain as a result of stroke, trauma (tbi) or surgery can result in an area of blindness affecting the visual fields of both eyes. This translates into a range of difficulties ranging from visual field loss to double vision. The impact on visual fields depends on the location and severity of the injury.
Visual field defects therefore make every day living more difficult. Sufferers frequently bump into objects, and easily trip or fall over objects in their field loss. Going into crowded shops may become quite difficult, because people and objects suddenly appear in front of them from the blind side. Additionally, the loss of visual field may also cause patients to have difficulties with reading and writing.
Following brain injury there can be some degree of spontaneous recovery within the damaged visual field. This usually occurs within 3 months of acquiring the injury.
It has now been well established that repeated stimulation of the borders of the field defect over extended periods of time, using a rehabilitation program such as NeET, can lead to significant changes in sensitivity beyond this time period.
Below are some of the most common visual problems associated with stroke and traumatic brain injury.
Types of vision loss after stroke or other brain injury
A common visual effect of brain injury is the reduction in one’s visual field. There are various types of visual field losses which can occur including, hemianopia, quadrantopia, scotoma and low vision.
The most common form is homonymous hemianopia (loss of half the field of vision in each eye). If the posterior portion of the brain is damaged on one side of the brain, a loss of visual field occurs to the opposite side in both eyes. This is often mistaken by the sufferer as loss of vision in just one eye.
The Therapy consist of: