http://www.medindia.net/healthnews/retinal-detachment-news.asp Medindia largest health website in india. en-us Copyright 2013. All Rights Reserved. Sat, 18 May 2013 04:29:31 GMT http://www.medindia.net/news/researchers-capture-first-steps-of-synapse-building-in-live-zebra-fish-117859-1.htm On barely day-old zebra fish embryos, University of Oregon scientists have gained a new window using spinning disk microscopy, on how synapse-building components move to worksites in the central nervous system. What researchers captured in these see-through embryos -- in what may be one of the first views of early glutamate-driven synapse formation in a living vertebrate -- were orderly movements of protein-carrying packets along axons to a specific site where a synapse would be formed. The ...]]> http://www.medindia.net/news/researchers-capture-first-steps-of-synapse-building-in-live-zebra-fish-117859-1.htm http://www.medindia.net/news/retinal-implants-clear-second-phase-of-trials-114626-1.htm Researchers reported that German-designed implants aimed at restoring vision to patients blinded by retinal disease have succeeded in the second phase of trials. The device was tested for up to nine months among nine people with retinitis pigmentosa, an inherited disease in which light receptors on the back of the eyeball degenerate and eventually cease to function. "Of the nine patients observed in the study, three patients were able to read letters spontaneously," Retina Implant AG, ...]]> http://www.medindia.net/news/retinal-implants-clear-second-phase-of-trials-114626-1.htm http://www.medindia.net/news/protein-that-prevents-light-induced-retinal-degeneration-discovered-114236-1.htm Scientists have identified a protein that protects retinal photoreceptor cells from degeneration caused by light damage. This protein may provide a new therapeutic target for both an inherited retinal degenerative disease and age-related macular degeneration. The paper is published in the February 13, 2013 issue of the iJournal of Neuroscience/i. The visual cycle is essential for regenerating visual pigments that sense light for vision. However, abnormal visual cycles promote formation ...]]> http://www.medindia.net/news/protein-that-prevents-light-induced-retinal-degeneration-discovered-114236-1.htm http://www.medindia.net/news/speaking-to-fraser-syndrome-hearing-loss-is-a-study-of-zebra-fish-mouth-formation-105011-1.htm Researchers studying the earliest formation of cartilage of the mouth using mutant zebra fish believe they may have gotten a look at a mechanism involved in a genetic defect. This defect is linked to Fraser syndrome deafness in humans. Reporting in the Aug. 1 issue of the journal iDevelopment/i, they identify a potential developmental pathway worthy of more scrutiny in future research into Fraser syndrome, a many-faceted and rare recessive genetic disease. In humans, a mutation in the gene ...]]> http://www.medindia.net/news/speaking-to-fraser-syndrome-hearing-loss-is-a-study-of-zebra-fish-mouth-formation-105011-1.htm http://www.medindia.net/news/manipulating-recipient-retinal-microenvironment-may-help-improve-transplantation-outcomes-104081-1.htm An animal study by UK researchers has revealed that insulin-like growth factor (IGF1) impacts cell transplantation of photoreceptor precursors by manipulating the retinal recipient microenvironment. This can enable better migration and integration of the cells into the adult mouse retina. Their study is published in the current issue of ICell Transplantation /I(21:5), now freely available on-line at http:www.ingentaconnect.com/content/cog/ct/. "Photoreceptor death is an irreversible process ...]]> http://www.medindia.net/news/manipulating-recipient-retinal-microenvironment-may-help-improve-transplantation-outcomes-104081-1.htm http://www.medindia.net/news/researchers-develop-new-method-to-study-lipid-metabolism-in-live-zebra-fish-103543-1.htm A new study published in the journal Chemistry (and) Biology reveals that two researchers at Carnegie have developed a new method that allows them to watch lipid metabolism in live zebra fish. This in turn can allow scientists to study new aspects of lipid absorption that could have broad applications for human health. The small intestine is composed of multiple cell types. It is also the site of microorganisms, bile and mucus that help digest and absorb food. In this environment, dietary lipids ...]]> http://www.medindia.net/news/researchers-develop-new-method-to-study-lipid-metabolism-in-live-zebra-fish-103543-1.htm http://www.medindia.net/news/retinal-vessel-diameter-and-cvd-risk-in-african-americans-with-type-1-diabetes-study-101617-1.htm According to a report in the May issue of iArchives of Ophthalmology/i, a JAMA Network publication among African Americans with type 1 diabetes mellitus, narrower central retinal arteriolar equivalent (average diameter of the small arteries in the retina) is associated with an increased risk of six-year incidence of any cardiovascular disease and lower extremity arterial disease. "Retinal arteriolar narrowing has long been described as one of the characteristic changes associated with hypertension ...]]> http://www.medindia.net/news/retinal-vessel-diameter-and-cvd-risk-in-african-americans-with-type-1-diabetes-study-101617-1.htm http://www.medindia.net/news/risk-of-retinal-detachment-increased-by-oral-use-of-antibiotic-fluoroquinolones-99782-1.htm New research involving nearly one million patients shows that patients who were taking oral fluoroquinolones had a higher risk of developing a serious eye issue called retinal detachment compared with nonusers. The study appears in the April 4 issue of JAMA. "Fluoroquinolones are one of the most commonly prescribed classes of antibiotics. Their broad-spectrum antibacterial coverage and high-tissue distribution provide potency for a wide variety of community-acquired infections," according to background information in the article....]]> http://www.medindia.net/news/risk-of-retinal-detachment-increased-by-oral-use-of-antibiotic-fluoroquinolones-99782-1.htm http://www.medindia.net/news/Retinal-Health-may-be-Compromised-by-Emerging-Pharmaceutical-Platform-91906-1.htm An emerging pharmaceutical platform used in treating a variety of diseases may produce unintended and undesirable effects on eye function. This is the conclusion of a new research by University of Kentucky investigators. The paper, "Short-interfering RNAs Induce Retinal Degeneration via TLR3 and IRF3", appears in the current online edition of the journal IMolecular Therapy,/I a publication of the Nature Publishing Group and the American Society of Gene and Cell Therapy. "Short-interfering ...]]> http://www.medindia.net/news/Retinal-Health-may-be-Compromised-by-Emerging-Pharmaceutical-Platform-91906-1.htm http://www.medindia.net/news/US-may-Soon-Have-Canon-CR-2-PLUS-Non-mydriatic-Retinal-Camera-91108-1.htm After getting the nod from the FDA for CR-2 PLUS digital non-mydriatic retinal camera, Canon has announced its release in the U.S. market. The USP of the CR_2 PLUS camera is the capability of fundus autofluorescence photography which is helpful in spotting macular residue. The CR-2 PLUS employs a common Rebel digital SLR which is used as the image sensor. The CR-2 PLUS camera enables capture of images, processing and storing them in a permanent storage base. This is possible due to Canon's Retinal Imaging Control Software (RICS)....]]> http://www.medindia.net/news/US-may-Soon-Have-Canon-CR-2-PLUS-Non-mydriatic-Retinal-Camera-91108-1.htm http://www.medindia.net/news/Scientists-Discover-That-Retinal-Cells-Are-Of-Two-Kinds-Not-One-as-Believed-88262-1.htm The old adage "Looks can be deceiving" certainly rings true when it comes to people. But it is also accurate when describing special light-sensing cells in the eye, according to a Johns Hopkins University biologist. In a study recently published in iNature/i, a team led by Samer Hattar of the Department of Biology at the Krieger School of Arts and Sciences and Tudor Badea at the National Eye Institute found that these cells, which were thought to be identical and responsible for both setting ...]]> http://www.medindia.net/news/Scientists-Discover-That-Retinal-Cells-Are-Of-Two-Kinds-Not-One-as-Believed-88262-1.htm http://www.medindia.net/news/Study-Identifies-Novel-Pathway-to-Fight-Retinal-Disease-Cancer-85678-1.htm Researchers at Cincinnati Children's Hospital Medical Center have identified a new molecular pathway that is designed to suppress blood vessel pattering in the developing retina. The finding may pave the way for fighting diseases of the retina and a variety of cancers. After a series of experiments in cell cultures and mouse models, researchers reported that myeloid cells and blood cells involved in the immune system use this molecular pathway to guide blood vessel branching in the retina....]]> http://www.medindia.net/news/Study-Identifies-Novel-Pathway-to-Fight-Retinal-Disease-Cancer-85678-1.htm http://www.medindia.net/news/Use-of-Skin-Cells-in-Retinal-Regeneration-85160-1.htm Scientists for the first time, have used stem cells derived from skin to re-grow retinas and thereby restore and improve vision. The results of their study hold great promise for future treatments and cures for diseases such as age-related macular degeneration, retinitis pigmentosa, diabetic retinopathy and other retinal diseases that affect millions worldwide. First author Budd A. Tucker together with principle investigator Michael J. Young harvested skin cells from the tails of red fluorescent mice....]]> http://www.medindia.net/news/Use-of-Skin-Cells-in-Retinal-Regeneration-85160-1.htm http://www.medindia.net/news/Excess-Television-Viewing-Causes-Narrowing-of-Retinal-Arteries-in-Children-84169-1.htm Watching too much television or spending moretime on the computer was never known to be good. A recent study has shown that children who watch television instead of engaging in physical activity have narrower arteries in their eyes compared to their more active counterparts. Narrowing of retinal arteries is an indicator of elevated risk of heart disease and hypertension in the later years. It is important that children reduce their time spent on the electronic screen and instead head out for at least an hour of physical activity....]]> http://www.medindia.net/news/Excess-Television-Viewing-Causes-Narrowing-of-Retinal-Arteries-in-Children-84169-1.htm http://www.medindia.net/news/Patients-With-Certain-Type-Of-Retinal-Vascular-Disease-Are-At-a-Higher-Risk-of-Stroke-82330-1.htm Patients with a disease known as retinal vein occlusion (RVO) have a significantly higher incidence of stroke when compared with persons who do not have RVO, according to a report in the March issue of IArchives of Ophthalmology,/I one of the JAMA/Archives journals. "Retinal vein occlusion (RVO) is a retinal vascular disease in which a retinal vein is compressed by an adjacent retinal artery, resulting in blood flow turbulence, thrombus formation, and retinal ischemia," the authors write as background information in the article....]]> http://www.medindia.net/news/Patients-With-Certain-Type-Of-Retinal-Vascular-Disease-Are-At-a-Higher-Risk-of-Stroke-82330-1.htm http://www.medindia.net/news/In-the-Last-10-Years-Treatment-of-Retinal-Conditions-Appears-to-Have-Changed-Significantly-75278-1.htm A report in the October issue of IArchives of Ophthalmology/I, one of the JAMA/Archives journals says that the number of Medicare recipients undergoing treatment for retinal conditions nearly doubled between 1997 and 2007, with significant shifts in the types of procedures most commonly performed. "Retinal disease is highly prevalent among older individuals, and both age-related macular degeneration (AMD) and diabetic retinopathy account for more than half the irreversible blindness in older Americans....]]> http://www.medindia.net/news/In-the-Last-10-Years-Treatment-of-Retinal-Conditions-Appears-to-Have-Changed-Significantly-75278-1.htm http://www.medindia.net/news/Six3-Gene-Essential-for-Retinal-Development-Say-Scientists-74315-1.htm Six3 gene functions like a doorman in the developing brain and visual system, safeguarding the future retina by keeping the region where the eye is forming free of a signaling protein capable of disrupting the process, new research led by St. Jude Children's Research Hospital investigators has said The findings underscore the pivotal role Six3 plays in the developing nervous system as a key regulator of the Wnt family of signaling proteins and expands on earlier work from the laboratory of Guillermo Oliver, Ph....]]> http://www.medindia.net/news/Six3-Gene-Essential-for-Retinal-Development-Say-Scientists-74315-1.htm http://www.medindia.net/news/Blind-Mice-Get-Vision-With-Special-Retinal-Cells-71392-1.htm Special, retinal photosensitive cells enable blind mice to see patterns and images, claims a new study. For long it has been believed that eyesight would not exist but for the presence of rod and con cells in the retina. But the new study, appearing in the journal Neuron, overturns the conventional belief, providing new hope to people who have severe vision impairments or are blind. Led by biologist Samer Hattar of The Johns Hopkins University's Krieger School of Arts ...]]> http://www.medindia.net/news/Blind-Mice-Get-Vision-With-Special-Retinal-Cells-71392-1.htm http://www.medindia.net/news/Retinal-Function-may-Indicate-Risk-of-Schizophrenia-Bipolar-Disorder-64752-1.htm Canadian researchers suggest that retinal function could prove to be a useful biomarker for detecting the risk of schizophrenia and bipolar disorder. Lead researchers Marc Hebert, Michel Maziade claim that retinal deficits may contribute to the perceptual problems associated with the disorders. Over the past several years, research has suggested that cognitive impairments in schizophrenia might be linked to early stages of visual perception. This work is now drawing attention to the ...]]> http://www.medindia.net/news/Retinal-Function-may-Indicate-Risk-of-Schizophrenia-Bipolar-Disorder-64752-1.htm http://www.medindia.net/news/More-Information-About-Inherited-Retinal-Disease-63835-1.htm New links between a common form of inherited blindness affecting children and a gene known as Abelson helper integration site-1 (AHI1) have been found in a new study led by scientists at the University of California, San Diego School of Medicine. The findings may help in the development of new therapies and improved techniques for diagnosing the retinal disease. A newly recognized class of disorder known as "ciliopathies" has gripped the medical community. Ciliopathies ...]]> http://www.medindia.net/news/More-Information-About-Inherited-Retinal-Disease-63835-1.htm http://www.medindia.net/news/Camera-in-Retinal-Flexible-Implants-to-Restore-Sight-62391-1.htm To help restore vision of people with certain forms of visual impairment, scientists from Stanford University in California have developed what they call 'flexible retinal implant'. According to researcher Rostam Dinyari, conditions such as age-related macular degeneration occur when some of the photoreceptors in the eye stop functioning properly. Although other parts of the eye still work, it might be possible to restore vision using an implant that mimics the photoreceptor layer....]]> http://www.medindia.net/news/Camera-in-Retinal-Flexible-Implants-to-Restore-Sight-62391-1.htm http://www.medindia.net/news/Untreated-Retinal-Detachment-Due-to-Eye-Floaters-May-Cause-Blindness-61447-1.htm A new Canadian study led by a researcher of Indian origin has revealed that if left untreated, eye floaters and flashes of light which are linked to retinal tear or detachment may even eventually cause blindness. The study conducted by researchers from Queen's University and Hotel Dieu Hospital in Kingston has appeared online in the Journal of the American Medical Association. The team found that one out seven patients with the symptom are likely to have a retinal tear or detachment....]]> http://www.medindia.net/news/Untreated-Retinal-Detachment-Due-to-Eye-Floaters-May-Cause-Blindness-61447-1.htm http://www.medindia.net/news/Retinal-Tear-may-Cause-Eye-Floaters-and-Flashes-of-Light-61429-1.htm A new study says that suddenly seeing floaters or flashes of light may indicate a serious eye problem that - if untreated - could lead to blindness. Researchers from Queen's University and Hotel Dieu Hospital in Kingston have discovered that one in seven patients with this symptom will have a retinal tear or detachment. "If we detect a tear and laser it, we can save people from potentially going blind," says senior author of the study Dr. Sanjay Sharma, a professor of Ophthalmology and ...]]> http://www.medindia.net/news/Retinal-Tear-may-Cause-Eye-Floaters-and-Flashes-of-Light-61429-1.htm http://www.medindia.net/news/People-With-Retinal-Degeneration-may-Benefit-from-Human-Embryonic-Stem-Cell-Therapy-58922-1.htm Cells derived from human embryonic stem cells (hESCs) have been used to reverse retinal degeneration in an animal model. This news offers new hope that a cure for the devastating eye disease may be available in the near future. In their laboratory, Dr. Benjamin Reubinoff, Dr. Eyal Banin, and their colleagues from Hadassah-Hebrew University Medical Center in Jerusalem developed conditions to guide hESCs to differentiate into functional cells that resembled the retinal pigment epithelium (RPE)....]]> http://www.medindia.net/news/People-With-Retinal-Degeneration-may-Benefit-from-Human-Embryonic-Stem-Cell-Therapy-58922-1.htm http://www.medindia.net/news/Boffins-Develop-Novel-Retinal-Implant-to-Restore-Partial-Vision-58637-1.htm A retinal implant for people who have lost their vision from retinitis pigmentosa or age-related macular degeneration has been developed by researchers at Massachusetts Institute of Technology. The retinal prosthesis would help restore some vision by electrically stimulating the nerve cells that normally carry visual input from the retina to the brain. Although the chip would not restore normal vision, but it could help blind people more easily navigate a room or walk down a sidewalk. ...]]> http://www.medindia.net/news/Boffins-Develop-Novel-Retinal-Implant-to-Restore-Partial-Vision-58637-1.htm http://www.medindia.net/news/Without-Help-From-Brain-Retinal-Cells-That-Alert-Us-to-Approaching-Objects-Discovered-57741-1.htm Swiss scientists have discovered a kind of eye cells that, without taking the brain's help, can alert people to any objects drawing near. Botond Roska and his colleagues at the Friedrich Miescher Institute for Biomedical Research in Basel believe that this ability may have evolved to speed escape from predators. As to the significance of this finding, the researchers say that scientists have thus far known that the only cells that are sensitive to approaching objects exist in the brain....]]> http://www.medindia.net/news/Without-Help-From-Brain-Retinal-Cells-That-Alert-Us-to-Approaching-Objects-Discovered-57741-1.htm http://www.medindia.net/news/New-Zebra-Fish-Cloning-Method-Could-Enhance-Human-Health-Research-57362-1.htm Michigan State University scientists have come up with a more efficient method to clone zebra fish, which may eventually prove very useful in human health research. What makes this work an important achievement is the fact that zebra fish, which have served as an excellent model for understanding normal development and birth defects for more than 20 years, are quickly becoming the animal of choice for many researchers. "After the mouse, it is the most commonly used vertebrate in genetic studies....]]> http://www.medindia.net/news/New-Zebra-Fish-Cloning-Method-Could-Enhance-Human-Health-Research-57362-1.htm http://www.medindia.net/news/Eye-Cells-Deemed-to-be-Retinal-Stem-Cells-are-Actually-Normal-Adult-Cells-49393-1.htm Researchers at St. Jude Children's Research Hospital have found that eye cells believed to be retinal stem cells are actually normal adult cells, and thus therapies to restore vision in people with retinal degeneration should involve other types of stem cells. Scientists have always believed that retinal stem cells may form the basis for treatments to restore sight to millions of people with blindness caused by retinal degeneration, provided they can be obtained. The current study suggests ...]]> http://www.medindia.net/news/Eye-Cells-Deemed-to-be-Retinal-Stem-Cells-are-Actually-Normal-Adult-Cells-49393-1.htm http://www.medindia.net/news/New-Retinal-Gene-Responsible-For-Childhood-Blindness-Discovered-48312-1.htm Montreal March 2nd, 2009 - The team of Dr. Robert Koenekoop which includes Dr. Irma Lopez from the Research Institute of the MUHC at the Montreal Children's Hospital played a crucial role in the international collaboration that led to the discovery of a new gene that causes Leber congenital amaurosis (LCA) and retinitis pigmentosa (RP), two devastating forms of childhood blindness. This finding of this new gene, called SPATA7, is remarkable because it identifies a new retinal metabolic disease pathway that may be crucial for many patients....]]> http://www.medindia.net/news/New-Retinal-Gene-Responsible-For-Childhood-Blindness-Discovered-48312-1.htm http://www.medindia.net/news/Retinal-Detachment-Can-Be-Treated-Through-Surgeries-44617-1.htm An American research team has found that retinal detachment, a condition that puts an individual at risk for vision loss or blindness, can be treated with using one of three currently available surgical techniques. "Although no randomized trials have been conducted that show definitively that one procedure is best for every situation, improvements in these surgical techniques have led to effective treatments for most patients," says Dr. Donald J. D'Amico, ophthalmologist-in-chief at NewYork-Presbyterian ...]]> http://www.medindia.net/news/Retinal-Detachment-Can-Be-Treated-Through-Surgeries-44617-1.htm http://www.medindia.net/news/Blindness-may-be-Cured-by-Gene-Therapy-for-Retinal-Degeneration-43066-1.htm In a development that could lead to blindness cure, researchers from Massachusetts General Hospital (MGH) have successfully restored vision in mice with retinal degeneration, using gene therapy. The team was able to restore useful vision to mice with degeneration of the light-sensing retinal rods and cones, a common cause of human blindness, thus building hope that the technique may someday treat retinitis pigmentosa and macular degeneration. "This is a proof of principle that someday we ...]]> http://www.medindia.net/news/Blindness-may-be-Cured-by-Gene-Therapy-for-Retinal-Degeneration-43066-1.htm http://www.medindia.net/news/Diabetes-Induced-Retinal-Destruction-can-Be-Prevented-by-Painkiller-Drug-41698-1.htm A drug, called pentazocine, known for its pain-relieving power can prevent the retinal damage that leads to vision loss in diabetes, scientists have claimed. The drug is also believed to stimulate memory. The study has indicated that compounds that bind with the sigma receptor in the eye may be good treatments for the top two causes of vision loss: diabetic retinopathy and glaucoma. "The effects of this drug on retinal health are phenomenal," said Dr. Sylvia Smith, retinal cell biologist ...]]> http://www.medindia.net/news/Diabetes-Induced-Retinal-Destruction-can-Be-Prevented-by-Painkiller-Drug-41698-1.htm http://www.medindia.net/news/Retinal-Transplants-Helping-the-Blind-to-See-41626-1.htm Retinal transplant seems to be the new buzzword doing the rounds in medical circles nowadays after eye surgeons asserted that they may be able to restore sight to some blind people with such a transplant mechanism. Preliminary research has shown encouraging results with transplantation of retinal cells in patients with blindness caused by retinitis pigmentosa (RP) and age-related macular degeneration (AMD). In the study, Dr. Norman D. Radtke of University of Louisville, Kentucky, lead author ...]]> http://www.medindia.net/news/Retinal-Transplants-Helping-the-Blind-to-See-41626-1.htm http://www.medindia.net/news/Patients-With-Retinal-Degeneration-may-Be-Better-Off-With-Retinal-Transplants-39242-1.htm Researchers have revealed that retina cell transplantation has shown promising outcomes in patients with retinal degeneration. In the study led by Dr. Norman D. Radtke of University of Louisville, Ky., and colleagues found that retina transplants improved vision in 7 out of 10 patients with vision loss due to retinitis pigmentosa (RP) and age-related macular degeneration Out of the ten patients, six patients had lost vision due to RP and four had the "dry" form of AMD. Both RP and AMD ...]]> http://www.medindia.net/news/Patients-With-Retinal-Degeneration-may-Be-Better-Off-With-Retinal-Transplants-39242-1.htm http://www.medindia.net/news/Retinal-Hemorrhaging-in-Kids-Linked-to-Severe-Motor-Vehicle-Crashes-38567-1.htm The severity of retinal hemorrhaging for young children in motor vehicle crashes is closely correlated to the severity of the crash, according to a new study by researchers at the Medical College of Wisconsin in Milwaukee. Retinal hemorrhages occur when the blood vessels lining the retina rupture, resulting in bleeding onto the surface of the retina. The study, by Jane Kivlin, M.D., and Kenneth Simons, M.D., professors of ophthalmology at the Medical College, is published in the June issue of IArchives of Ophthalmology/I....]]> http://www.medindia.net/news/Retinal-Hemorrhaging-in-Kids-Linked-to-Severe-Motor-Vehicle-Crashes-38567-1.htm http://www.medindia.net/news/Implantable-Prosthesis-may-Restore-Vision-Lost-by-Retinal-Disease-37382-1.htm A fully implantable visual prosthesis has been developed by Fraunhofer Institute for Microelectronic Circuits and Systems IMS in Duisburg. This new technique could be a ray of hope for people who have lost their vision due to retinal disease. Experts from different disciplines, over a period 12 years, have been working to develop the new technique that may help restore vision of patients who have become blind due to retinal diseases. The researchers tested the new technique on six patients ...]]> http://www.medindia.net/news/Implantable-Prosthesis-may-Restore-Vision-Lost-by-Retinal-Disease-37382-1.htm http://www.medindia.net/news/Study-Links-High-Blood-Pressure-High-Cholesterol-to-Retinal-Vascular-Disease-36639-1.htm Researchers at the Royal College of Surgeons in Ireland, Dublin, have found that high blood pressure and high cholesterol may be associated with an increased risk of retinal vein occlusion, a condition that causes vision loss. The team found that high blood pressure and high cholesterol levels appear to be risk factors for retinal vein occlusion. Retinal vein occlusion occurs when one or more veins carrying blood from the eye to the heart become blocked, according to background information in the article....]]> http://www.medindia.net/news/Study-Links-High-Blood-Pressure-High-Cholesterol-to-Retinal-Vascular-Disease-36639-1.htm http://www.medindia.net/news/Study-Finds-Eye-Cancer-Genes-Role-in-Retinal-Development-31954-1.htm A genetic discovery led by scientists at St. Jude Children's Research Hospital helps answer a long-standing mystery about the eyes of vertebrates, and may translate into a deeper understanding of how genes coordinate the complex process of eye formation and how a rare pediatric eye cancer progresses. "A series of complex developmental processes must be carefully orchestrated for the eye to form correctly," said Michael Dyer, Ph.D., associate member in the St. Jude Department of Developmental Neurobiology....]]> http://www.medindia.net/news/Study-Finds-Eye-Cancer-Genes-Role-in-Retinal-Development-31954-1.htm http://www.medindia.net/news/Key-Mechanism-Behind-Retinal-Regeneration-Identified-26399-1.htm A team of researchers have discovered a key mechanism that drives eye health and diseases. Scientists in the Department of Ophthalmology at Weill Cornell Medical College in New York City said that they have discovered just how light-sensing discs in the retina's rod cells regenerate themselves. The retina uses two cell types-rods and cones-to sense incoming light. "Rod cells make up the majority of photoreceptors in the human eye, and disruptions in these discs' ability to grow ...]]> http://www.medindia.net/news/Key-Mechanism-Behind-Retinal-Regeneration-Identified-26399-1.htm http://www.medindia.net/news/Retinal-PH-Regulation-Found-to-Be-an-Important-Factor-Behind-Blindness-25957-1.htm A research has revealed that a gene involved in retinal pH regulation may be an important player when it comes to blindness. Drs Joe Casey and Yves Sauve from the University of Alberta found that characterization of a mouse model with a targeted disruption of the Slc4a3 gene is the new source of blindness. The previously unrecognised cause of blindness has direct clinical implications. It gives rise to a new diagnostic possibility for many yet unknown causes of blindness, including hereditary vitreoretinal degenerations (HVDs)....]]> http://www.medindia.net/news/Retinal-PH-Regulation-Found-to-Be-an-Important-Factor-Behind-Blindness-25957-1.htm http://www.medindia.net/news/view_news_main.asp?x=20049 Neural computation scientists at Bonn University have created a software system that is hoped to improve the function of retinal implants significantly. With the aid of the software, the visual prosthesis "learns" to generate exactly those signals, which are expected and can be interpreted by the brain. Nearly two dozens of patients in Germany and the U.S. have so far been implanted with a visual prosthesis. For this purpose, clinicians open the eye ball and attach a thin foil at the retina. ...]]> http://www.medindia.net/news/view_news_main.asp?x=20049 http://www.medindia.net/news/view_news_main.asp?x=9174 People with inherited retinal degeneration have hope of vision since researchers have engineered cells in the eye to be light sensitive that were not before. Zhuo-Hua Pan of Wayne State University School of Medicine and colleagues have engineered this technology using a harmless virus, they introduced a gene for a light-sensitive protein into "inner retinal neurons" in a strain of mice with photoreceptor deficiency that resembles the defect in such inherited human disorders as retinitis pigmentosa....]]> http://www.medindia.net/news/view_news_main.asp?x=9174 http://www.medindia.net/news/view_news_main.asp?x=9155 Fish oil has numerous health benefits and is being touted as a new age elixir. So another research is in its honour is welcome.Nicolas G. Bazan, MD, PhD, Boyd Professor and Director of the Neuroscience Centre of Excellence at LSU Health Sciences Centre in New Orleans, in a paper reports on the role that the omega-3 fatty acids in fish oil play in protecting cells in the retina from degenerative diseases like retinitis pigmentosa and age-related macular degeneration, the leading cause of loss of vision in those older than 65....]]> http://www.medindia.net/news/view_news_main.asp?x=9155 http://www.medindia.net/news/view_news_main.asp?x=8112 A new study has now found out that retinal examination of a child, to determine the location and number of hemorrhages may not be a sure sign of abuse. This was discussed in the American Academy of Forensic Sciences annual meeting held in Seattle recently. Retina is a light sensitive tissue located behind the eye. Any rupture in the retinal surface can damage the tiny blood vessels and the result is bleeding or retinal hemorrhage. A wide variety of conditions such as falls, car wrecks, gunshot ...]]> http://www.medindia.net/news/view_news_main.asp?x=8112 http://www.medindia.net/news/view_news_main.asp?x=6394 Researchers from the Pennsylvania State University are trying to determine why Europeans have a lighter skin than Africans, through studying the zebra fish. The team led by Mark Shriver studied genes of humans and zebra fish and found a small change in their key gene plays a major role in determining skin pigmentation.bRbR The finding, published in the journal of Science, may not only help explain why people of European descent have a lighter skin than those from Africa, but also lead to ...]]> http://www.medindia.net/news/view_news_main.asp?x=6394