Retina Current Events

Retina Current Events, Retina News Articles.
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Researchers shed light on how our eyes process visual cues
The mystery of how human eyes compute the direction of moving light has been made clearer by scientists at The University of Queensland. Using advanced electrical recording techniques, researchers from UQ's Queensland Brain Institute (QBI) discovered how nerve cells in the eye's retina were integral to the process. (2017-06-07)

Pig stem cell transplants: The key to future research into retina treatment
A team of American and Chinese scientists studying the role of stem cells in repairing damaged retina tissue have found that pigs represent an effective proxy species to research treatments for humans. The study, published in Stem Cells, demonstrates how stem cells can be isolated and transplanted between pigs, overcoming a key barrier to the research. (2011-04-12)

Emory Eye Center to host 25th Southeastern Vitreoretinal Seminar (SEVR)
Emory Eye Center will host the 25th Southeastern Vitreoretinal Seminar (SEVR) at the Eye Center's Calhoun Auditorium within the Learning Resources Center in The Emory Clinic, Building B. The meeting will take place from 8 a.m. to 5 p.m. on Friday, Feb. 11, and from 8 a.m. to noon on Saturday, Feb. 12. (2011-01-31)

Instruction and permission in eye/brain development
Researchers at UC Davis are challenging the conventional view of how connections form between the optic nerves and the brain. (2003-05-14)

USTC deciphers transcriptomic atlas of aging human and macaque retina
The work which provides valuable basic for the molecular regulation of aging progression and related diseases, was published in National Science Review on Aug. 25, 2020. (2020-09-06)

Changes In The Retina As A Result Of Complications From Diabetes May Occur Sooner Than Currently Thought
Researchers from Penn State's College of Medicine have found that during diabetes subtle changes occur in the retina much earlier than previously thought. Further study of these changes may lead to novel and early therapeutic intervention to slow down or stop the progression of vision loss in people with diabetes. (1998-08-26)

Action at a distance in the hyperoxic eye
Exposing newborns to high levels of oxygen, as occurs during the care of premature infants, can have several unfortunate effects on vessel development in the eye, including the loss of vessels within the retina and prolific growth of leaky vessels in the (normally avascular) vitreous body of the eye. This latter effect, which can lead to retinal detachment and blindness, occurs only after the infant is returned to normoxic conditions. (2001-03-13)

Alzheimer's disease proteins could be at fault for leading cause of vision loss among older people
Research from the University of Southampton gives new insight into possible causes of Age-related Macular Degeneration (AMD), a leading cause of vision loss among people aged 50 and older. (2016-11-21)

Genetic mutations that lead to macular degeneration blindness mapped by new research
Two gene mutations that trigger a retinal disease that causes blindness in one in 5,000 males have been mapped, leading to the potential for new therapeutic treatments. (2016-11-04)

Researchers identify genes associated with aging of the retina
A new study finds that the aging of the human retina is accompanied by distinct changes in gene expression, an important step in understanding the mechanisms of aging and its impact on vision disorders such as macular degeneration. The research, which establishes the first-ever gene profile of the aging human retina, show that retinal aging is associated, in particular, with expression changes of genes involved in stress response and energy metabolism. (2002-06-26)

Biological cause of one form of blindness identified by SLU researchers
Saint Louis University researchers have discovered the cause of one form of retinitis pigmentosa, a type of genetically inherited blindness. The research, which will be published Tuesday in the April 27 Proceedings of the National Academy of Sciences (PNAS), opens the door to the development of new treatments. (2004-04-28)

Development of the first biohybrid artificial retina built with silk fibroin and retinal cells.
An international research led by the Complutense University of Madrid has taken a further step to solve Age-related Macular Degeneration (AMD)-derived blidness problem with the development of the first biohybrid artificial retina built with silk fibroin and retinal cells. (2020-12-11)

Clinical trial tests cord tissue to treat macular degeneration
UIC is part of a national phase 2 clinical trial to evaluate the safety and tolerability of using cells derived from multipotent umbilical cord cells to treat age-related macular degeneration, the most common cause of vision loss in people over 55. (2016-07-20)

Fish eyes could hold clue to repairing damaged retinas in humans
A special type of cell found in the eye has been found to be very important in regenerating the retina in zebrafish and restoring vision even after extensive damage. Now, a UK team of scientists believe they may be able to use these cells -- known as Müller glial cells -- to regenerate damaged retina in humans, according to a study published this month in the journal Stem Cells. (2007-07-31)

Could an eye doctor diagnose Alzheimer's before you have symptoms?
A study of more than 200 people at the Duke Eye Center in the journal Ophthalmology Retina suggests the loss of blood vessels in the retina could signal Alzheimer's disease. (2019-03-11)

Microchip gives blind chance of sight
A computer chip implanted near the eye's retina is well on its way to offering some restored vision to people blinded by eye diseases such as retinitis pigmentosa and age-related degeneration of the eye. The implant works for eye diseases where healthy retinal neurons remain intact after they lose use of the eye's photoreceptors that convert images into electric impulses. Researchers recently reported that tests show faces can be recognized and words in large type can be read. Human tests started recently. (2002-01-24)

A drug to treat retinal diseases with drops instead of injections
The Spanish firm Sylentis has developed a compound to treat diseases of the retina, such as age-related macular degeneration and diabetic retinopathy, which will be administered by ophthalmic drops instead of intraocular injections. The drug, which has been tested in animals, is a small interfering RNA capable of penetrating the cells of the retina and blocking the formation of new blood vessels. (2017-12-12)

Retina holds the key to better vision in deaf people
People who are deaf benefit from better vision due to the fact their retinas develop differently, experts at the University of Sheffield have shown. (2011-06-01)

Study: The eyes may have it, an early sign of Parkinson's disease
The eyes may be a window to the brain for people with early Parkinson's disease. People with the disease gradually lose brain cells that produce dopamine, a substance that helps control movement. Now a new study has found that the thinning of the retina, the lining of nerve cells in the back of the eye, is linked to the loss of such brain cells. (2018-08-16)

The brain can combine natural and artificial vision to help treat common form of blindness
Researchers report the discovery of evidence indicating that the brain knows how to integrate natural and artificial vision, while maintaining processing information that is important for vision. The results have implications for better restoration of sight in AMD patients implanted with retinal prosthetic devices and support the hypothesis that prosthetic and natural vision can be integrated in the brain. This could also have implications for future brain-machine interface applications where artificial and natural processes co-exist. (2019-12-26)

Cells in the retina light the way to treating jet lag
Researchers have found a new group of cells in the retina that directly affect the biological clock by sending signals to a region of the brain which regulates our daily (circadian) rhythms. This new understanding of how circadian rhythms are regulated through the eye could open up new therapeutic possibilities for restoring biological clocks in people who have jet lag through travelling or working night shifts. (2017-04-17)

Cascade of events leading to prion disease described
Prion diseases are deadly neurodegenerative disorders in humans and animals that are characterized by misfolded forms of prion protein (PrP). Development of effective treatments has been hampered by the lack of good experimental models. In a new study published in the American Journal of Pathology, researchers describe the distinct stages of prion disease in the mouse retina and define an experimental model to specifically test therapeutic approaches. (2016-08-09)

Newly developed chemical restores light perception to blind mice
Progressive degeneration of photoreceptors -- the rods and cones of the eyes -- causes blinding diseases such as retinitis pigmentosa and age-related macular degeneration. While there are currently no available treatments to reverse this degeneration, a newly developed compound allows other cells in the eye to act like photoreceptors. As described in a study appearing in the journal Neuron, the compound may be a potential drug candidate for treating patients suffering from degenerative retinal disorders. (2014-02-19)

Magnetic fluids offer hope for treatment of retinal detachment
Someday silicone magnetic nanoparticles may be used to treat retinal detachment. Similar materials may also be used to increase the memory on your computer. (2000-08-22)

First artificial retinas implanted in blind volunteers
In landmark surgeries at UIC Medical Center, the first artificial retinas made from silicon chips were implanted in the eyes of two blind patients who have lost almost all their vision because of retinal disease (2000-06-29)

Sight gone, but not necessarily lost?
Like all tissues in the body, the eye needs a healthy blood supply to function properly. Poorly developed blood vessels can lead to visual impairment or even blindness. While many of the molecules involved in guiding the development of the intricate blood vessel architecture are known, only now are we learning how these molecules work and how they might affect sight. (2009-10-30)

Role identified for key protein in regeneration of damaged newt retinas
University of Tsukuba-led researchers have identified a role for the Pax6 protein in deciding the fate of newt retinal cells. Normal newt retinal pigment epithelium cells enable retinal regeneration following injury, but those lacking Pax6 were unable to do so. Instead, they behaved like cells in human retinas by transforming to heal the wound but failing to renew the retina. These findings may help control the mechanisms involved in retinal injury, leading to novel treatments. (2016-10-02)

Alzheimer's detected before symptoms via new eye technology
Scientists may have overcome a major roadblock in the development of Alzheimer's therapies by creating a new technology to observe in the back of the eye progression of the disease before the onset of symptoms. Clinical trials are to start in July to test the technology in humans according to a paper recently published in Investigative Ophthalmology & Visual Science. (2016-07-11)

Researchers detect receptor for day/night cycles
It's been something of a mystery to scientists - how are blind mice able to synchronize their biological rhythms to day and night? New research by a team of scientists, including one from the University of Toronto, seems to have uncovered the answer. (2003-06-23)

Chinese scientists decipher origins of repopulated microglia in brain and retina
A research team led by Bo Peng at Shenzhen Institutes of Advanced Technology successfully deciphered the origin of repopulated microglia in the brain by a series of fate mapping approaches. The results provided solid evidences that repopulated microglia were solely derived from residual microglia rather than de novo progenitors, indicating the absence of microglial progenitor cells in the adult brain. (2018-02-27)

Unrestrained retina too much of a good thing
When primitive nerve cells begin forming an eye in the mouse embryo, they are programmed to build a retina. But the ability to see depends upon connecting the retina to the brain via the optic nerve. Unless these embryonic cells are given the right cue at the right time, they mistakenly form a huge eye that consists entirely of retina and lacks the optic nerve. (2005-05-17)

Major technical advance in astronomy improves diagnosis of eye diseases
A major technical advance in astronomy is making it possible for scientists at Indiana University to see individual living cells of the human retina clearly for the first time. This will greatly improve doctors' ability to diagnose diseases of the retina such as glaucoma at an early stage, when intervention and treatment can prevent blindness. (2003-01-17)

Promise of faster, more accessible schizophrenia diagnosis, Rutgers study shows
A Rutgers study shows how the hand-held device RETeval may prove to be a more accessible way to diagnose schizophrenia, predict relapse and symptom severity, and assess treatment effectiveness. (2018-05-30)

Scientists regenerate retinal cells in mice in UW Medicine-led study
Scientists have succeeded in regenerating functional retinal cells in adult mice. Like humans, mice cannot repair damage to their retinas. However, because zebrafish can, researchers created in mice a version of the fish gene responsible for turning Muller glia into retinal cells if eye injury occurs. Researchers found way to prevent the gene's activity from being blocked as the mice got older. The new interneurons formed connections and reacted normally to signals from light-detecting cells in the retina. (2017-07-26)

MSU researcher links diabetic complication, nerve damage in bone marrow
A research team led by a Michigan State University professor has discovered a link between diabetes and bone marrow nerve damage that may help treat one of the disease's most common and potentially blindness-causing complications. (2010-01-06)

Look to the future: New drug reduces one cause of vision loss
In the industrialized world, most diseases that cause vision loss do so by altering the permeability of the blood vessels in the retina of the eye. One recently developed treatment for many of these diseases requires the repeated injection of the drug into the eye. But a new study in mice and rabbits indicates that there might be a more painless and simple approach to reduce blood vessel permeability in the eye. (2008-05-15)

A vitamin A analog may help treat diabetic retinopathy
Diabetic retinopathy is a common complication of diabetes and a leading cause of blindness among the working-age population. A new study in The American Journal of Pathology reports that visual function in diabetic mice was significantly improved after treatment with a single dose of visual chromophore 9-cis-retinal, a vitamin A analog that can form a visual pigment in the retina cells, thereby producing a light sensitive element of the retina. (2020-06-11)

Optical Technology Projects Images Directly Into The Eye
A laser and a rapidly rotating reflective polygon are the main components in a new technique to project images directly onto the retina. The so-called Reinal Scanning Display Method (RSD) makes it possible to project virtual reality in a very realistic way. The laser light used is five thousand times less strong than the critical limit for the eye and not in any way dangerous. (1998-03-19)

A pocket-sized retina camera, no dilating required
Researchers at the University of Illinois at Chicago College of Medicine and Massachusetts Eye and Ear/Harvard Medical School have developed a cheap, portable camera that can photograph the retina without the need for pupil-dilating eye drops. (2017-03-20)

Study provides further insight into how Ebola affects the eye
A new study, conducted by the researchers from the University of Liverpool, published in JAMA Ophthalmology identifies the specific characteristics of Ebola retinal lesions, which provide further clues as to how the virus travels to the retina and causes damage. (2018-05-15)

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