When you have problems with your vision and go to an ophthalmology practice, often not only your eyes and their visual acuity are measured, but also your visual field is examined with a perimeter. First of all: What is the visual field? The visual field is the area of your vision that you can perceive...
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In our last blog we told you about a new rigorous peer-reviewed study published in BioMed Research International shows improvements in visual search following the use of NovaVision’s NeuroEyeCoach. This study generated a lot of interest in the both the popular and business or medical press. We thought you might like to see what they said – it is...
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Depth perception – the ability to see our environment three-dimensionally – is based on “Stereoscopic vision”, which requires two intact eyes that are aligned and move synchronously. Try the following: place a round patterned object, e.g. a painted coffee cup, at arm’s length on the table in front of you. Select a dot from the...
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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....
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During the past several decades, stroke care in the United States has substantially evolved, with organizations such as the American Heart Association/American Stroke Association, Brain Attack Coalition, and National Stroke Association all being at the forefront of this movement. One of the major advancements is the organization of care that has and is being transformed...
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Transient ischemic attacks (TIAs) are common, affecting at least 240,000 people each year in the United States. TIA’s can at times be mistaken for a stroke since it can mimic stroke-like symptoms. It is important to know the difference as TIA’s are a serious warning sign that a stroke may happen in the future and...
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The pituitary gland is situated in the center of the brain, about 10 cm behind the nose, along a virtual line between the ears. In spite of its small size - about the size of a cherry-pit - it is very important. The pituitary gland is the superior ductless gland of the body and produces...
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Blind areas in the eye can be the result of an eye disease, vision disorders or a visual field loss – the “blind spot” however is an absolutely normal phenomenon found in every human being. The picture below shows the visual impression of a healthy left eye – why is there a black circle...
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In the context of neurological visual field loss we very often hear about hemianopia, the loss of the right or left half of the visual field in both eyes. However, some patients with neurological visual field loss find the term “quadrantanopia” in their medical records. If “hemianopia” means that you cannot see in half of...
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Are you allowed to drive a car when you have suffered a stroke, a traumatic brain injury other neurological disease? Can you drive a car with a visual field defect? A person who suffered a stroke or traumatic brain injury might have to face many impediments when he/she wants to drive a car again. Balance...
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