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All Articles Tagged As: vision


New therapy holds promise for restoring vision (12/23/2014)

New therapy holds promise for restoring visionUC Berkeley scientists developed a therapy to restore light sensitivity to retinas blinded by the death of photoreceptors, as in retinitis pigmentosa. They use a virus to insert a gene for an ion channel into surviving retinal cells. An injected chemical binds to the receptor and opens it when hit with light, making these cells respond to light. It works in mice and now dogs at PennVet, while mice see enough to follow visual cues. ...> Full Article



The human eye can see 'invisible' infrared light (12/15/2014)

The human eye can see 'invisible' infrared lightScience textbooks say we can't see infrared light. Like X-rays and radio waves, infrared light waves are longer than the light waves in the visual spectrum. But an international team of researchers has found that under certain conditions, the retina can sense infrared light after all. ...> Full Article



Eye diseases identified by how we watch TV (12/2/2014)

Eye diseases identified by how we watch TVOne of the leading causes of blindness worldwide could be detected by how our eyes respond to watching TV according to a new study from researchers at City University London. ...> Full Article


Can eating blueberries really help you see better in the dark? (11/29/2014)

Blueberries are super stars among health food advocates, who tout the fruit for not only promoting heart health, better memory and digestion, but also for improving night vision. Scientists have taken a closer look at this latter claim and have found reason to doubt that the popular berry helps most healthy people see better in the dark. Their report appears in ACS' Journal of Agricultural & Food Chemistry. ...> Full Article


Could reading glasses soon be a thing of the past? (11/18/2014)

A corneal inlay device currently undergoing clinical review in the United States improved near vision well enough for 80 percent of the participating patients to read a newspaper without disturbing far distance vision needed for daily activities like driving. ...> Full Article


Wavefront optics emerging as new tool for measuring and correcting vision, reports Optometry and Vision Science (10/24/2014)

A technique developed by astronomers seeking a clear view of distant objects in space is being intensively studied as a new approach to measuring and correcting visual abnormalities. The October issue of Optometry and Vision Science, official journal of the American Academy of Optometry, is a theme issue devoted to research on wavefront refraction and correction. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. ...> Full Article


Americans rate losing eyesight as having greatest impact on their lives (10/14/2014)

Many Americans across racial and ethnic groups describe losing eyesight as potentially having the greatest impact on their day-to-day life, more so than other conditions including: loss of limb, memory, hearing and speech (57 percent of African-Americans, 49 percent of non-Hispanic whites, 43 percent of Asians and 38 percent of Hispanics). ...> Full Article


Not enough vitamin B1 can cause brain damage (10/7/2014)

A deficiency of a single vitamin, B1 (thiamine), can cause a potentially fatal brain disorder called Wernicke encephalopathy. Symptoms can include confusion, hallucinations, coma, loss of muscle coordination and vision problems such as double vision and involuntary eye movements. Untreated, the condition can lead to irreversible brain damage and death. ...> Full Article



Vision-correcting display makes reading glasses so yesterday (8/8/2014)

Vision-correcting display makes reading glasses so yesterdayResearchers at UC Berkeley are developing vision-correcting displays that can compensate for a viewer's visual impairments to create sharp images without the need for glasses or contact lenses. The technology could potentially help those who currently need corrective lenses to use their smartphones, tablets and computers, and could one day aid people with more complex visual problems. ...> Full Article



Omega (ω)-3 inhibits blood vessel growth in a model of age-related macular degeneration in vivo (6/28/2014)

Omega (ω)-3 inhibits blood vessel growth in a model of age-related macular degeneration in vivoResearchers from Massachusetts Eye and Ear/Schepens Eye Research Institute and Harvard Medical School and other institutions have demonstrated for the first time that the omega (ω)-3 long-chain polyunsaturated fatty acids, DHA and EPA, and their specific bioactive products derived from the cytochrome P450 pathway, can influence choroidal neovascularization and vascular leakage by modulating micro-environmental immune cell recruitment to the site of these lesions. ...> Full Article


Grape-enriched diet supports eye health (6/4/2014)

Research suggests that regular grape consumption may play a role in eye health by protecting the retinal structure and function. ...> Full Article


Plugging leaky blood vessels to save vision (5/14/2014)

A new drug approach has been developed for safer clean-up of deformed blood vessels in the eye by a research team at the Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital in Toronto. ...> Full Article


New gel-based eye fluid aids post-operative healing (5/10/2014)

In an effort to avoid serious side effects suffered after surgery to repair retinal detachment, vision scientists have developed a new product to help stabilize the eye while it heals. The research is being presented at the 2014 Annual Meeting of the Association for Research in Vision and Ophthalmology this week in Orlando, Fla. ...> Full Article


Sniff study suggests humans can distinguish more than 1 trillion scents (4/6/2014)

Sniff study suggests humans can distinguish more  than 1 trillion scentsBased on the sensitivity of these people's noses and brains, Rockefeller researchers calculate that the human sense of smell is far more refined than previously believed. While individual volunteers' performance varied, on average people can tell the difference between complex mixtures of odors even when they contain many of the same components. ...> Full Article


Blind can 'hear' colors and shapes, show researchers (3/22/2014)

Blind can 'hear' colors and shapes, show  researchersWhat if you could 'hear' colors? Or shapes? These features are normally perceived visually, but using sensory substitution devices they can now be conveyed to the brain noninvasively through other senses, say Hebrew University of Jerusalem researchers. ...> Full Article


No clowning around: Juggling sheds light on how we run (2/27/2014)

No clowning around: Juggling sheds light on how we runJuggling may seem like mere entertainment, but engineers used this circus skill to gather critical clues about how vision and the sense of touch help control the way humans and animals move their limbs in a repetitive way, such as in running. The findings eventually may aid in the treatment of people with neurological diseases and could lead to prosthetic limbs and robots that move more efficiently. ...> Full Article


A short stay in darkness may heal hearing woes (2/21/2014)

A short stay in darkness may heal hearing woesCall it the Ray Charles Effect: a young child who is blind learns to hear things others cannot. Researchers know that young brains are malleable enough to re-wire some circuits that process sensory information. Now researchers at the University of Maryland and Johns Hopkins University have shown the brains of adult mice can also be re-wired, compensating for vision loss by improving their hearing. This may lead to treatments for human hearing loss. ...> Full Article


Just 2 weeks in orbit causes changes in eyes (11/3/2013)

Just 2 weeks in orbit causes changes in eyesJust 13 days in space may be enough to cause profound changes in eye structure and gene expression, report researchers. Their study is the first to examine eye-related gene expression and cell behavior after spaceflight. ...> Full Article


Heartbeats link mind and body together (8/27/2013)

In Switzerland, EPFL research reveals that the heart beat creates a link between the mind and the body, showing for the first time that the brain processes information about our internal organs, jointly with visual signals, to identify the self. ...> Full Article


Hands-free talking and texting are unsafe (6/26/2013)

Hands-free talking and texting are unsafeUsing hands-free devices to talk, text or send e-mail while driving is distracting and risky, contrary to what many people believe, says a new University of Utah study issued today by the AAA Foundation for Traffic Safety. ...> Full Article


New study finds blind people have the potential to use their 'inner bat' to locate objects (5/26/2013)

New research from the University of Southampton has shown that blind and visually impaired people have the potential to use echolocation, similar to that used by bats and dolphins, to determine the location of an object. ...> Full Article


Researchers clarify process controlling night vision (10/24/2012)

On the road at night or on a tennis court at dusk, the eye can be deceived. Vision is not as sharp as in the light of day, and detecting a bicyclist on the road or a careening tennis ball can be tough. New research reveals the key chemical process that corrects for potential visual errors in low-light conditions. Understanding this fundamental step could lead to new treatments for visual deficits, or might one day boost normal night vision to new levels. ...> Full Article


Is arm length the reason women need reading glasses sooner than men? (7/1/2012)

Studies have consistently reported that women require reading glasses or bifocal lenses earlier than men. According to a recent Investigative Ophthalmology & Visual Science paper, the gender difference is caused by factors other than focusing ability, such as arm length or preferred reading distance, which should be considered when prescribing readers or bifocals. ...> Full Article


Can a standard vision test predict nighttime driving performance? (4/18/2012)

Just because a driver has passed the motor vehicle administration's vision test may not mean he or she is safe to drive. A recent study found that the frequency and distance at which drivers with moderate levels of blurred vision and cataracts recognize pedestrians at night was severely reduced, even when the drivers have passed the required vision test. ...> Full Article


Scientists map the frontiers of vision (1/15/2012)

Pioneering vision study in mice will help revolutionize the study of brain function and mental disease. ...> Full Article


Smartphone making your eyes tired? (8/1/2011)

Several reports indicate that prolonged viewing of mobile devices and other stereo 3-D devices leads to visual discomfort, fatigue and even headaches. According to a new Journal of Vision study, the root cause may be the demand on our eyes to focus on the screen and simultaneously adjust to the distance of the content. ...> Full Article


Thyroid affects color vision (3/30/2011)

Thyroid affects color visionWhat part does the thyroid gland have in vision? Thyroid hormone is crucially involved in controlling which visual pigment is produced in the cones. Previously, it was assumed that the color sensitivity of the cones is fixed in the adult retina. ...> Full Article

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