The Macular Degeneration Association, a nonprofit dedicated to preventing blindness, today issued an urgent warning to patients suffering from a form of the disease known as “intermediate dry age-related macular degeneration.” MDA leaders and ophthalmologists are advising patients to talk with their doctors about a proven and commonly prescribed vitamin supplement containing zinc, an ingredient …
macular degeneration
Metformin use associated with reduced risk of developing open-angle glaucoma
Taking the medication metformin hydrochloride was associated with reduced risk of developing the sight-threatening disease open-angle glaucoma in people with diabetes, according to a study published online by JAMA Ophthalmology. Medications that mimic caloric restriction such as metformin can reduce the risk of some late age-onset disease. It is unknown whether these caloric mimetic drugs …
Cells from Eyes of Dead ‘May Give Sight to Blind’
Cells taken from the donated eyes of dead people may be able to give sight to the blind, researchers suggest. Tests in rats, reported in Stem Cells Translational Medicine, showed the human cells could restore some vision to completely blind rats. Donated corneas are already used to improve some people's sight, but the team at the Institute for Ophthalmology, at UCL, extracted a special kind of …
Tiny Nanoparticles Could Make Big Impact for Cornea Transplants
There are about 48,000 corneal transplants done each year in the U.S., compared to approximately 16,000 kidney transplants and 2,100 heart transplants 12. Out of the 48,000 corneal transplants done, 10 percent of them end up in rejection, largely due to poor medication compliance. The nanoparticle loaded with medication could eliminate the need for a patient to remember to take their medicine - …
Lab-Grown Retina from Stem Cells Responds to Light
...stem cell researchers have struggled to coax the malleable cells to form the 10 layers of the retina. And, crucially, no one had, before now, produced lab-grown retinal cells that they demonstrated would respond to light.Researchers at Johns Hopkins pulled it off, they reported in a paper published recently in Nature Communications. They cultivated a three-dimensional complement of retinal …
American Health Assistance Foundation Announces Latest Grants to Advance Promising Vision Research
The American Health Assistance Foundation (AHAF), a nonprofit organization with a history of funding breakthrough research on age-related vision diseases, announced today that it has awarded 21 new grants totaling $2.1 million to scientists worldwide who are studying and macular degeneration. The two conditions are the leading causes of irreversible blindness in the world. For the full …
Eye Spy: Stem Cells Discovered in Eyeball
Hiding in the back of your eye are stem cells from the central nervous system, scientists have discovered. The stem cells in question were found in a special layer of cells in the eye called the retinal pigment epithelium, or RPE. Just one cell thick, the layer lies underneath the retina, the eye's light sensor. The RPE keeps the retina alive and functioning. In diseases like macular degeneration, …