NovaVision Blog

Every forty seconds someone has a stroke. In the US alone, there are eight million stroke survivors! Half of the stroke recurrences happen within the first week. Peter M. Rothwell, MD, Ph.D., of Oxford University, England and colleagues found that 5.1% of patients with an initial transient ischemic attack had a stroke within the next 24 hours....

Hemianopia, also called hemianopsia, is a common type of vision loss after stroke or brain injury, and is defined as diminished vision or full vision loss in the left or right half of the visual field of one or both eyes. Types Of Hemianopia There are numerous types of hemianopia, each named depending on the...

Visual field loss is a common sign of stroke and brain injury with about 30% of patients suffering vision disorders. The question is, why do hemianopia and quadrantanopia involve such distinctive patterns of vision loss? The answer lies in the brain. When a stroke or brain injury patient experiences homonymous visual field loss (i.e. visual field loss...