vision

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

... have retinitis pigmentosa with moderate-to-severe vision loss. Three centers in the United States have been...isual field, progressing over many years to tunnel vision and finally blindness. At Emory Eye Center retina specialists Thomas M. Aaberg, Sr. and Jiong Yan p...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...) microchips in the eyes of five patients to treat vision loss caused by retinitis pigmentosa (RP). The impl...nd retinitis pigmentosa, which cause blindness and vision impairment in about 10 million Americans. More than one million of these people are legally blind. ...

Ophthalmologists implant five patients with artificial silicon retina microchip

...) microchips in the eyes of five patients to treat vision loss caused by retinitis pigmentosa (RP). The impl...nd retinitis pigmentosa, which cause blindness and vision impairment in about 10 million Americans. More than one million of these people are legally blind. ...

Mayo Clinic Researchers Create 'Obedient Virus'; First Step To Use Measles Virus Against Cancer

...cells. The measles virus became the focus of this vision several years ago when the surprising finding was made that the measles strain used internationally for vaccinations has natural anticancer activity. "But we had a concern that the measles virus may be a little too promiscuous in its ability to infe...

Artifical cornea lets woman blind 20 years see

...reaction to a medication robbed Elma Phifer of her vision two decades ago when she was 39. The reaction scar...p her do many of the activities people with normal vision sometimes take for granted. Now, twenty years and several life milestones later, Elma is able to see...

Researchers discover molecular mechanism that desensitizes us to cold

...other receptors, including ones involved in taste, vision and fertilization. Therefore, the findings may have important implications across a wide range of areas. Diomedes Logothetis, PhD, Dean of the Mount Sinai Graduate School of Biological Sciences, post-doctoral fellow Tibor Rohacs and colleagues studi...

Migratory songbirds have a specialized night-vision brain area

...ed. The researchers found that blocking night-time vision dramatically reduced gene activity in cluster N. "This result confirmed that night-migratory birds seem to have a brain area specifically adapted for seeing during their night-time flight," Jarvis said. The researchers suspect that the newly discove...

Brain May Be Less Plastic Than Hoped

...n the fovea—a small depression in the retina where vision is most acute—and covering the blind spot. They made baseline measurements of the cortical quiet zone two to three hours after the laser surgery and compared them to new readings taken every few weeks for up to seven and a half months. “If the visua...

Bobbing birds do it for a reason

...iding "motion blur" was essential for high-quality vision in birds; many animals, including humans, stabilize visual fields only transiently, through the use of eye movements alone, and accept quite a lot of so-called "visual flow" when in motion. In new work addressing this question, Thomas Cronin and Mat...

Penn Researchers Use Robotic Surgery

...s to see the surgical site more closely than human vision allows, and to work at a smaller scale of detail than conventional surgery permits. Unlike other endoscopic systems now in use, which afford reverse-image views that require counter-intuitive movements by surgeons (whereby the surgeon must move his h...

Two new retroviruses—transmitted from animals—identified

...s to see the surgical site more closely than human vision allows, and to work at a smaller scale of detail than conventional surgery permits. Unlike other endoscopic systems now in use, which afford reverse-image views that require counter-intuitive movements by surgeons (whereby the surgeon must move his h...

Novel live reporting system to track cells

...y modified cells. This method grew out of a joint vision that originated 10 years ago in collaboration with the late Dr. Yoav Citri. Ferritin's advantage is that it is visible in MRI without the need for an additional contrast material. This technique has far-reaching implications for monitoring the progre...

Genetic links could unlock clues to leading cause of blindness

...ut the earliest stages of the disease, when severe vision loss could still be stopped. The researchers pinp...ecks to build up in the eye, chipping away central vision over time. But Dawson said most people don't even realize something is wrong until they detect chang...

Six previously blind patients detect light, motion, identify objects with retinal prostheses

...ual vision-loss epidemic. Both AMD and RP destroy vision by annihilating the retinal cells that allow light to be translated into recognizable images. Second Sight's intraocular retinal prosthesis is taking the first step to replacing those cells with its device, a 4-by-4 grid of platinum electrodes embed...

Drawing with DNA: 'Bioart' illuminates genomics

...ogy" uses a combination of dynamic media, computer vision and computer graphics to visualize genomic data. ...he rice along a horizontal. A whole-body computer vision interface tracks the movements of visitors and allows them to interact with the installation. By mov...

Public collections of DNA and RNA sequence reach 100 gigabases

...ssociated with patents. The INSDC has realized the vision of the researchers who initiated the sequence database projects, by making the global sharing of nucleotide sequence information possible." Takashi Gojobori, Director of the Center for Information Biology and DNA Data Bank of Japan, says: "The INSD...

Elderly mice yield clues to the process of growing old

...o such things as hair and weight loss, hearing and vision impairment, loss of muscle mass, weakened bones and fewer circulating red blood cells. Mitochondria are structures within cells that provide energy for cells to move, divide, contract and secrete products vital for the health of organisms. "We think...

Carnegie Mellon cyLab researchers work to develop new red tide monitoring

...tware is designed to incorporate multiple computer vision algorithms and the domain knowledge from NOAA scientists. "Spatiotemporal data mining extracts changing spatial patterns from continuous data flow. It is a rapidly growing field, which includes inverse physics, machine learning and human-computer in...

New study shows SARS can infect brain tissue

...scle pain--but after hospitalization, he developed vision problems, then progressively worse central nervous system symptoms, like restlessness and delirium. A computed tomography scan indicated brain damage. He died about a month after being hospitalized, and his brain tissue was examined and found to cont...

Locusts' built-in 'surface analysis' ability directs them to fly overland

...t of these grasshoppers ?namely their polarization vision -- provides them with a built-in source of "surface analysis" ?a discovery that could pave the way for efforts to effectively combat this periodic scourge by controlling their natural inclination to fly over land rather than water. The desert locust...

Surgical Robot 'Scrubs In' At UNC, May Be More Precise Than Conventional Surgery

...ment is similar to open surgery, with "all-around" vision and the ability to zoom in and out. Another advantage with da Vinci is the elimination of tremor. Surgeons can scale, or ratio, their finger movement to that of the robotic instrument. A movement of inches at the console can be scaled down to centim...

Screen all at risk for HIV, plus pregnant women

...ment is similar to open surgery, with "all-around" vision and the ability to zoom in and out. Another advantage with da Vinci is the elimination of tremor. Surgeons can scale, or ratio, their finger movement to that of the robotic instrument. A movement of inches at the console can be scaled down to centim...

FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk

...ment is similar to open surgery, with "all-around" vision and the ability to zoom in and out. Another advantage with da Vinci is the elimination of tremor. Surgeons can scale, or ratio, their finger movement to that of the robotic instrument. A movement of inches at the console can be scaled down to centim...

NHGRI expands effort to revolutionize sequencing technologies

...e to common, complex diseases. Ultimately, NHGRI's vision is to cut the cost of whole-genome sequencing to $1,000 or less, which will enable the sequencing of individual genomes as part of routine medical care. The ability to sequence an individual genome cost-effectively could enable health care profession...

New cell transplantation technique restores insulin production in diabetics

...s. It can result in significant morbidity, causing vision loss, loss of sensation that results in severe infections, fractures and amputations, destruction of major organ function (e.g., the kidneys) and cardiovascular disease that can result in complications such as heart attacks. Both genetic and environm...

Gene therapy works in mice to prevent blindness that strikes boys

...ns to split in the middle, causing loss of central vision - that's the vision that you need to be able to read or walk around." Scientists say the gene transfer method eventuall...

Scientists characterize proteome of human cornea

...sightedness, farsightedness, or astigmatism. These vision disorders are often the result of incorrect curvat...egular shape of the cornea and are the most common vision disorders in this country. Other diseases that affect the cornea range from bacterial, fungal, and v...

University of Delaware researchers develop cancer 'nanobomb'

...the use of tiny nanosensors. "In the future, my vision is that people will have at-home kits that can detect cancer. After work they will be able to go to a clinic, be treated with nanobombs and go home," Panchapakesan said. While these initial experiments are on breast cancer cells, he is also working t...

Tsunami + 1 year: Reviving exhausted fisheries should trump replacing boats, gear, experts say

...for the affected communities. Above all, long-term vision must guide short-term rehabilitation." The Government of Indonesia is leading the co-ordination and guiding all efforts to help fishing communities, supported and assisted by the UN Food and Agriculture Organization. Says WorldFish: "If necessary, ...

Multiple genes permit closely related fish species to mix and match their color vision

...clues to understanding how the components of color vision can undergo change over a relatively short period ...lids offer a unique opportunity to study how color vision can undergo change in rapidly evolving species. For example, because color plays a significant role ...

Scientists map one of biology's critical light-sensing structures

...ically speaking, we can now try to re-engineer the vision system of a plant." According to Vierstra, there are many kinds of phytochromes found in every plant, and they exist in virtually all cells. They occur in greater concentrations in cells that respond directly to light, such as in root tips and new s...

PET imaging reveals the immune system at work

...Angeles has taken a key step toward realizing that vision by demonstrating the ability to peer inside the body non-invasively and see the immune system at work. The new research is important because it may one day aid physicians in the diagnosis and treatment of important conditions such as cancer and othe...

Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method

...Angeles has taken a key step toward realizing that vision by demonstrating the ability to peer inside the body non-invasively and see the immune system at work. The new research is important because it may one day aid physicians in the diagnosis and treatment of important conditions such as cancer and othe...

Bees solve complex colour puzzles

...ns resolve one of the most difficult challenges of vision - namely, recognizing different surfaces under dif...s in principle an easy problem to solve, since all vision needs to do is adapt itself to the scene's average colour, a bit like adapting to the darkness of a ...

Watch your step when the going gets rough

...get. In 50% of the attempts they blocked subjects' vision just at the point when they were lifting their foot off the ground. On the occasions when vision was blocked, the subjects were less able to step accurately on the target. "Because vision was bloc...

UC Berkeley researchers create a biologically-inspired artificial compound eye

...sual or chemical information from a wider field of vision than previously possible, even with the best fish-eye lens, said Luke P. Lee, the team's principal investigator. Potential applications include surveillance; high-speed motion detection; environmental sensing; medical procedures, such as endoscopies ...

Pacific Islands paradise protected

... "The Republic of Kiribati has shown unprecedented vision for long-term conservation of its precious marine biodiversity. We are proud to be associated with this effort." ...

Researchers reverse juvenile diabetes in animal model

...t urination, constant hunger, weight loss, blurred vision and extreme fatigue. People with type 1 diabetes require numerous daily injections of insulin to survive. About Dr. Trucco Massimo Trucco, MD, has dedicated his life's work to finding a cure for diabetes -- finding a cure is a personal quest for...

Chemical warfare agent detection technology used to treat lung disease

...l Science, who is leading the research, said: "Our vision is that one day we will be able to detect a previously undetectable tumour metabolising inside a human lung simply by asking a patient to breathe into a device like this. For now our aim to use the microDMx sensor to develop better instruments which ...

In the mind's eye: How the brain makes a whole out of parts

...e so good at it ?far better than the best computer vision systems yet devised," Connor said. "That is because a large part of the human brain is devoted to interpreting objects in our world, so that we have the necessary information for interacting with our environment. "Vision doesn't happen in the eye,"...

Study in Science holds promise for a new approach to drug therapy

... signaling cascades, passing on messages that make vision possible, carry nerve messages, enable white blood cells to attack infection and set the timing of the heartbeat. Faulty GPCR signaling, on the other hand, plays a key role in several major diseases. As a result, GCPRs are targeted by 12 of the top 2...

Behavioral studies show UV contributes to marsupial color vision

...t marsupials, like primates, have functional color vision based on three different types of color photorecep...ut unlike primates, a component of marsupial color vision includes sensitivity to ultraviolet wavelengths. In the study, researchers employed behavioral tes...

Rare Chinese frogs communicate by means of ultrasonic sound

...ense in fishes and homing pigeons, polarized light vision in ants, chemical sensing of pheromones in insects and rodents, echolocation by ultrasound in bats and dolphins, are just a few examples. "That frogs can communicate with ultrasound adds to that list and represents a novel finding, because we normal...

Australian first to save sight

...tponements and waiting time for people living with vision loss," Dr Pollock said. Corneal recipient Dorothy O'Kane, 61, welcomed the news after initially missing an opportunity for a corneal transplant when she was on holiday in South Australia. "If this system had been in place at that time I could have ...

Lizard 'third eye' sheds light on evolution of color vision

... Human light-reception cells responsible for color vision are called cone cells or photoreceptors, and they contain only one kind of pigment per cell - red, green, or blue. A color image results when light-triggered signals in the three different types of cone cells are compared by other nerve cells in the ...

UF scientists trace origin of shark's electric sense

...on of sensory systems, such as olfaction, hearing, vision and touch, this shows sharks took a pre-existing genetic program and used it to build yet another type of sensory system," Cohn said. UF and University of Louisiana researchers analyzed electroreceptordevelopment in the embryos of the lesser spotted...

Biofuels can replace about 30 percent of fuel needs with significant research and policy effort

...nt improvements in how biofuel is processed. Their vision is for a fully integrated biorefinery, which is designed to take advantage of advances in plant science and innovative biomass conversion processes and equipment to produce fuels, power and chemicals from biomass. The biorefinery would work much lik...

New 'implanted contacts' designed to fix nearsightedness

..., by bending light rays to improve blurry distance vision without the need for glasses or contacts. Dr. Bow... percent ?almost 175 patients ?had 20/20 or better vision after three years. Ideal candidates are typically under 40 years of age and don't yet have presbyop...

A case of mistaken molecular identity

...n after noticing Chagas patients complaining about vision problems. "This was her idea, that the same antibo...on, said Levin. Levin said that Chagas patients' vision problems are caused exclusively by the antibodies that block rhodopsin, and not by inflammation. "In...

'Prosthetic' retinal cells let blind mice see light

...riment that could offer a new pathway to restoring vision in people with inherited retinal degeneration, res...tic engineering approach can be applied to restore vision in humans with inherited retinal degeneration disorders. For one thing, they said, they have not yet...

New crop of technology reveals plant health

..., in near real-time. PLANTS adhered to a broader vision where the virtual (computing) space was seamlessly integrated with the physical environment. One of its main objectives was to develop the necessary software modules, tools and methodologies that enable the efficient and flexible integration of 'augm...

Anti-inflammatory drug's potentially deadly side effect found to be rare

... sheaths surrounding brain cells. Symptoms include vision loss, mental deterioration, speech disturbances, loss of coordination and, in advanced phases, paralysis and coma. "It leaves the brain short-circuited," Clifford says. "It's a very bad disease that normally progresses to death within a few months u...

Chimpanzees can transmit cultural behavior to multiple 'generations'

...al effects of hormone replacement therapy; address vision disorders; and advance knowledge about the evolutionary links between biology and behavior. ...

Stanford snake venom study shows that certain cells may eliminate poison

...sweating or chills, with numbness, nausea, blurred vision and possibly convulsions before it's all over. Such misery is produced by a veritable witches' brew of toxins in snake venom. It's long been thought that the body's own immune system, rather than reducing the symptoms, may make things worse. But no...

MIT 'seeing machine' offers hope to blind

...challenged people with a range of causes for their vision loss who tested it in a pilot clinical trial. The ...Goldring was blind. (Surgeries have since restored vision in one eye). To better examine her eyes, Aiello asked her to go to the Schepens Eye Research Insti...

UF scientists restore sight to chickens with blinding disease

...n F. and William L. McKnight Brain Institute. "The vision capabilities of the treated animals far exceeded o...e transfer experiment five years ago that restored vision to blind Briard dogs. "This is proof of concept using a unique vector, animal model and approach. On...

Seeing the serpent

...brains, and grasping hands and feet, and use their vision to guide reaching and grasping. Scientists have th...al system does not actually fit with the idea that vision evolved along with reaching and grasping, Isbell said. But the visual system does seem to be well co...

New tiger report release: Tiger habitat down from just a decade ago

...here there is a broad landscape-level conservation vision with buy-in from stakeholders. "This report documents a low-water mark for tigers, and charts a way forward to reverse the tide," said John Robinson of the Wildlife Conservation Society. "We can save tigers forever. However, tiger conservation requ...

Nicotine exposure during development leads to hearing problems

...her higher cognitive functions and may also impair vision and other senses. Nicotine does seem to actually enhance cognitive processing when administered to adults, a finding that has also been shown in previous studies. The researchers found that in this study, nicotine appeared to enhance auditory funct...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...e of blood vessels--a unique phenomenon that makes vision possible. The key, say the researchers, is the une...bility to maintain a blood-vessel-free cornea, our vision would be significantly impaired," he says, adding that clear, vessel-free corneas are vital to any a...