Retinal tissue may degenerate for a number of reasons. Among them are: artery or vein occlusion, diabetic retinopathy, R.L.F./R.O.P. or disease (usually hereditary). Retinitis pigmentosa, retinoschisis, lattic degeneration, and macular degeneration are characterized by progressive types of retinal degeneration.
A new study involving the fruit fly, Drosophila melanogaster, published in the journal npj Aging and Mechanisms of Disease, shows that when flies are kept in darkness, or in white light from which the blue spectrum has been excluded, they live longer, compared to flies kept in alternating 12-hour shifts of blue LED light and darkness. The reason appears to be a speeded-up version of aging; the brain cells, retinal cells and climbing ability, all suffer a breakdown.
Combining two different treatment methods to slow the progression of myopia may deliver better results than either can achieve on their own.
In experiments with rats, pigs and monkeys, Johns Hopkins Medicine researchers have developed a way to deliver sight-saving gene therapy to the retina.
Genes borrowed from a spider turned Peter Parker into Spiderman. If scientists can use archaea--tiny organisms similar to bacteria--as a source of useful genes for humans, might it help prevent blindness one day?
Three unrelated families on three continents (from continental Portugal, the United States and Brazil), all with healthy ancestors, had children with a very rare disease.
More than a year after becoming one of the first medical institutions nationally to complete a revolutionary gene replacement surgery to restore vision in patients with retinal degeneration, surgeons at the of The Vision Center at Children's Hospital Los Angeles have successfully completed the procedure on an additional 13 patients.
Researchers have found that the complement system seems to protect against retinal degeneration in retinitis pigmentosa.
The scientific research team from the Universidad Pablo de Olavide led by doctor José Antonio Sánchez Alcázar has published a new study in the international magazines Molecular Neorubiology and Neural Regeneration Research.
Eye research charity, Fight for Sight, is funding the development of an ‘organ-on-chip’ that for the first time will be used to help investigate glaucoma, a leading cause of blindness.
It was surprisingly simple. University of California, Berkeley, scientists inserted a gene for a green-light receptor into the eyes of blind mice and, a month later, they were navigating around obstacles as easily as mice with no vision problems.
Millions of Americans are progressively losing their sight as cells in their eyes deteriorate, but a new therapy developed by researchers at the University of California, Berkeley, could help prolong useful vision and delay total blindness.
How is a healthy retina cell like a tumor cell? It hijacks an energy-producing chemical reaction to churn out molecular building blocks. When tumor cells do it, they use the building blocks to make cancer grow and spread. But when retina cells do it, they renew photoreceptor membranes that keep our vision sharp.
Retinal dystrophies such as Age-related macular degeneration (AMD) are a major cause of vision loss in aging populations. National Eye Institute (NEI) estimates that the prevalence of advanced AMD will grow to nearly 3 million by 2020.
A signaling pathway controlled by transforming growth factor beta (TGF-beta) could be involved in the progression of age-related macular degeneration.
Calcified nodules in the retina are associated with progression to late stages of age-related macular degeneration.
A new form of therapy may halt or even reverse a form of progressive vision loss that, until now, has inevitably led to blindness.
Sheets of fetal cells integrate into the retina and generate nearly normal visual activity in the brains of blind rats, reports new research published in JNeurosci.
Glaucoma, a disease that afflicts nearly 70 million people worldwide, is something of a mystery despite its prevalence. Little is known about the origins of the disease, which damages the retina and optic nerve and can lead to blindness.
Retinitis pigmentosa is a rare and hereditary neurodegenerative disease which causes vision loss due to the death of photoreceptors in the retina, and for which there is currently no treatment.
OHSU scientists have discovered a naturally occurring disease in monkeys that mimics a deadly childhood neurodegenerative disorder in people - a finding that holds promise for developing new gene therapies to treat Batten disease.