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Visual System Current Events | Visual System News | 2

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Fluctuating eye pressure associated with visual field deterioration in glaucoma patients
Fluctuations in eye pressure may be associated with a decreasing peripheral field of vision in patients with glaucoma, even if their eye pressure remains low overall.   view more (2007-08-14)

Early vision screening associated with better eyesight in children with amblyopia
Children who screen positive for amblyopia, reduced vision in one eye, before age 2 appear to have better visual outcomes than those whose vision problems are detected during screenings between ages 2 and 4.   view more (2008-04-15)

Speaking Eyes
If you speak only one language, do not feel upset. Simultaneously with your native language or perhaps even earlier, you have learned one more language - a visual one. A person perceives everything around through the eyes. The eyes "speak" their own special language. This language has letters, words and even grammar rules. Psychologists... view more... (2005-03-25)

Why our shifty eyes don't drive us crazy
Our eyes are constantly making saccades, or little jumps. Yet the world appears to us as a smooth whole. Somehow, the brain's visual system "knows" where the eyes are about to move and is able to adjust for that movement.   view more (2006-11-09)

Cerebrospinal Fluid Restores Vision
A new method for visual impairment treatment has been discovered by researchers of the Institute of Human Brain, Russian Academy of Sciences. The patients suffering from visual impairment can be helped if a healthy donor's cerebrospinal fluid is introduced to the parent's vertebral canal - this method is called liquortransfusion. Physiologists... view more... (2004-11-01)

New hope for migraine sufferers
Nearly one in ten adults suffers from migraine UK male sufferers alone lose 4m working days with an estimated productivity loss of £750m Migraine accounts for more than half of all headaches New collaborative research by City University, the University of Essex and the Institute of Optometry, London shows that coloured filters are effective... view more... (2002-08-16)

Surgeons' Performance Related To Visual-Spatial Ability (p 230)
A Canadian research letter in this week's issue of THE LANCET highlights how a surgeon's ability to execute a complex procedure is related to their degree of visual-spatial ability. Although some study participants were found to be more competent than others, those with low visual-spatial-ability scores improved their performance with repeated... view more... (2002-01-17)

The benefits of imagining a cat called Buddy
A virtual pet could be an important element in the use of visual imagery to treat cancer. The method is described today, Thursday 5 July, in a poster by Dr Maureen Burke of the University of Queensland, Australia at the European Congress of Psychology, held at the Barbican Centre, London. The benefits of visual imagery in the treatment of disease... view more... (2001-06-28)

Optical illusions, mirages that don't deceive
The aim of this paper is to dispel the excessively widespread myth that optical illusions are errors of the visual system. In 1978, Stanley Coren and Joan Stern Girgus published one of the most significant works of scientific literature in the last few decades, entitled "Seeing is Deceiving: The Psychology of Visual Illusions".   view more (2006-07-24)

Impaired vision common in US
A new report estimates that approximately 14 million people aged 12 years and older in the U.S. have vision impairment, of which more than 80 percent could be improved with the use of corrective lenses.   view more (2006-05-10)

New Study Indicates Radiologists Need Standards to Ensure Optimal Visual Accuracy
Radiologists, like professional pilots for example, depend on good vision as part of their occupation. However, radiologists unlike pilots are not required to undergo regular vision testing.   view more (2009-06-10)

Retina adapts to seek the unexpected, ignore the commonplace
Researchers at Harvard University have found evidence that the retina actively seeks novel features in the visual environment, dynamically adjusting its processing in order to seek the unusual while ignoring the commonplace. The scientists report in this week's issue of the journal Nature on their finding that this principle of novelty-detection... view more... (2005-07-11)

Visual impairment associated with increased mortality risk
Individuals age 49 and older with cataract and those age 49 to 74 years with age-related macular degeneration appear to have higher mortality rates over an 11-year period than those without such visual impairments.   view more (2007-07-10)

Sight can recover quickly in amblyopia
New research findings led by Thomas Krahe and Ary S. Ramoa of Virginia Commonwealth University School of Medicine offer two pieces of good news for treating children with amblyopia.   view more (2005-10-20)

Action video games improve vision
Video games that involve high levels of action, such as first-person-shooter games, increase a player's real-world vision, according to research in today's Nature Neuroscience.   view more (2009-03-30)

Big Brother is Watching You
Big Brother is really watching you and his name is Jeremiah. Jeremiah, like most people, likes company and a hive of activity and hates being ignored or bored. The only thing is, he is not a human being, but a virtual head which is capable of locating, monitoring and reacting to your movements. Jeremiah reacts to visual stimuli. His eyes and head... view more... (2002-02-19)

Read My Lips: Using Multiple Senses in Speech Perception
When someone speaks to you, do you see what they are saying? We tend to think of speech as being something we hear, but recent studies suggest that we use a variety of senses for speech perception - that the brain treats speech as something we hear, see and even feel.   view more (2009-02-12)

Vision loss more common in people with diabetes
Visual impairment appears to be more common in people with diabetes than in those without the disease, according to a report in the October issue of Archives of Ophthalmology, one of the JAMA/Archives journals.   view more (2008-10-14)

New study shows those blinded by brain injury may still 'see'
Except in clumsy moments, we rarely knock over the box of cereal or glass of orange juice as we reach for our morning cup of coffee. New research at The University of Western Ontario has helped unlock the mystery of how our brain allows us to avoid these undesired objects.   view more (2009-09-03)

A New Method For Assessing Neurological Development Of Fetuses? (p 779)
A preliminary study in this week's issue of THE LANCET outlines how light-emitting technology could help in the future assessment of fetal neurological development. There have been only a few studies of visual-evoked response in human fetuses, and all have focused on general changes such as heart rate, body movements, and eye movements. Curtis... view more... (2002-09-04)
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