Visual Impairment Current Events | Visual Impairment News | 7
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Blink, and the brain misses it
We would immediately notice if the outside world suddenly went dark every few seconds. But we rarely become aware of our blinks, even though they cause a similar reduction in the amount of light entering the eye. So why are we not aware of the frequent mini-blackouts caused by blinks? view more (2005-07-26)
Multiple genes permit closely related fish species to mix and match their color vision
Vision, like other biological attributes, is shaped by evolution through environmental pressures and demands, and even closely-related species that are in other ways very similar might respond to their particular environments by interpreting the visual world slightly differently, using photoreceptors that are attuned to particular wavelengths of... view more... (2005-10-11)
Biomarker for age-related macular degeneration found
People who have elevated homocysteine in their blood, an amino acid that is a known biomarker for cardiovascular disease, may also be at an increased risk of developing age-related macular degeneration (AMD), according to a study in the January issue of the American Journal of Ophthalmology. view more (2006-01-05)
Radiation therapy can help spare vision in patients with melanoma of the eye
Treating a rare form of eye cancer with radiation therapy can spare patients from significant vision loss. view more (2005-10-19)
Tibetan monks yield clues to brain's regulation of attention
University of Queensland researchers have teamed up with Tibetan Buddhist monks to uncover clues to how meditation can affect perception. view more (2005-06-07)
Large users of zopiclone assessed as impaired
A new study from the Norwegian Institute of Public Health shows a positive link between the amount of the hypnotic (sleeping medicine) zopiclone in the blood and the chance of being assessed as impaired in a clinical examination. view more (2009-03-27)
MIT: New insights into perception
In the classic waterfall illusion, if you stare at the downward motion of a waterfall for some period of time, stationary objects - such as rocks - appear to drift upward. view more (2009-04-10)
Audio-visual tools for Speech & Language Therapists
Latest developments from the Department of Electronics at the University of Kent at Canterbury (UKC) are proving to be invaluable audio-visual tools for Speech & Language Therapists around the world. Senior Lecturer Steve Kelly has been working on an already existing technology called SNORS+ and developed a system that combines time-coded... view more... (2002-04-25)
Eye researchers develop new 3-D monitor vision test for children
A new random-dot stereotest using a 3D display and infrared oculography has been found to objectively assess stereopsis in children older than three years according to an article published in the November 2006 issue of Investigative Ophthalmology & Visual Science (IOVS). view more (2006-10-26)
Low level of neuronal receptor linked to mild cognitive impairment and Alzheimer's disease
Results of a new study indicate a strong link between the loss of the neuronal receptor LR11and onset of mild cognitive impairment (MCI), often a harbinger of Alzheimer's disease. view more (2007-09-05)
Everything in its place: Researchers identify brain cells used to categorize images
Socks in the sock drawer, shirts in the shirt drawer, the time-honored lessons of helping organize one's clothes learned in youth. But what parts of the brain are used to encode such categories as socks, shirts or any other item, and how does such learning take place? view more (2006-08-28)
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)
Anesthesia is found to induce hyperphosphorylation of tau at sites related to Alzheimer's disease
Scientists from The New York State Office of Mental Retardation and Developmental Disabilities' (OMRDD) New York State Institute for Basic Research in Developmental Disabilities (IBR) report today in the March 2009 issue of the Journal of Alzheimer's Disease that anesthesia induces phosphorylation of tau. view more (2009-03-10)
Low oxygen in coastal waters impairs fish reproduction
Low oxygen levels in coastal waters interfere with fish reproduction by disrupting the fishes' hormones, a marine scientist from The University of Texas at Austin Marine Science Institute has found. view more (2007-08-29)
MRIs show drug treatment slows brain deterioration on road to Alzheimer's disease
According to a new study, the drug donepezil measurably slows the rate of brain shrinkage in some patients with mild cognitive impairment, a pre-Alzheimer's disease condition. view more (2006-07-18)
MIT retinal implant could help restore some vision
MIT engineers have designed a retinal implant for people who have lost their vision from retinitis pigmentosa or age-related macular degeneration, two of the leading causes of blindness. view more (2009-09-24)
LASIK for older adults
A new University of Illinois at Chicago study appearing in the online edition of the journal Ophthalmology reports on the safety, efficacy and predictability of laser eye surgery (laser in situ keratomileusis or LASIK) in patients 40-69 years old. view more (2007-04-19)
Computer poetry pushes the genre envelope
What happens to poetry in the Digital Age? In one of the first academic works in the field, Swedish researcher Maria Engberg has studied how the ability of the computer to combine words, images, movement, and sounds is impacting both writing and reading. view more (2007-09-13)
'Singing brains' offers epilepsy and schizophrenia clues
Studying the way a person's brain 'sings' could improve our understanding of conditions such as epilepsy and schizophrenia and help develop better treatments. view more (2009-05-20)
Big picture of brain changes may be crucial to recovery from stroke injury
A study of patients who have difficulty paying attention to the left side of their environment has provided some of the first direct evidence that brain injury can cause detrimental functional changes in brain regions far from the site of the actual injury. view more (2005-10-18)
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