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Ophthalmology news
Health
Sunglasses don't just look good—they're good for you, too—here's how to choose the right pair
Australians are exposed to some of the highest levels of solar ultraviolet (UV) radiation in the world.
14 hours ago
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Neuroscience
Precise map of primate foveolar cortex uncovers intricacies of brain's visual system
Humans and other primates are innately able to perceive fine details, vibrant colors and focus their attention on specific elements of what they are seeing at a given time. This ability is supported by the foveola, a tiny ...
Dec 19, 2024
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Using advanced optical tomography to assess ocular microcirculation
Like a complex network of highways, retinal microcirculation is a hidden system that powers the life of the eye—delivering oxygen, nourishing tissues, and allowing cells to function without disruption.
Dec 18, 2024
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Novel AI system tackles eye health inequalities in outback Australia
An AI-enhanced camera designed to take images of the eye's retina, developed by UCL and Moorfields researchers, is being deployed in remote Western Australia in an effort to prevent rural and Indigenous Australians going ...
Dec 17, 2024
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Diabetes drug linked to increased risk of severe eye condition
Two independent studies from the University of Southern Denmark (SDU) show that patients with type 2 diabetes who are treated with the drug Ozempic have an increased risk of developing damage to the optic nerve of the eye, ...
Dec 16, 2024
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Unlocking the secrets of the human eye: New models enhance surgery
EU researchers are unlocking the secrets of the human eye, creating cutting-edge digital models that are transforming the quality of eye surgeries.
Dec 11, 2024
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Empagliflozin linked to reduced progression of diabetic retinopathy
An investigation led by Brigham and Women's Hospital finds empagliflozin (sold as Jardiance) may reduce the risk of diabetic retinopathy (DR) progression in patients with a history of nonproliferative diabetic retinopathy ...
Visual resistance training for athletes improves reaction times, study finds
Professional athletic sports require elite athletes to function at the very limit of their abilities. After all, their competition consists entirely of other elite athletes trying to do just that. In this environment of fast-paced ...
Reprogramming stem cells to make 'retinal sheets' to treat blindness in minipigs
Millions of people around the world are affected by retinal degenerative diseases. In most cases, loss of vision is caused by damage to the macula, a region in the center of the retina. The macula is rich in cone photoreceptors—cells ...
Dec 5, 2024
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Study highlights defective eyesight among UK drivers
A major new report involving research from The University of Warwick has found that an estimated 720,000 motorists are driving on Britain's roads with defective eyesight.
Dec 5, 2024
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New research shines light on highly sensitive human visual system
Researchers at the University of Helsinki have made a breakthrough in understanding what neural mechanisms allow the extreme sensitivity of human vision in darkness. The new research shows that humans can perceive minute ...
Dec 4, 2024
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Nerve regrowth findings could lead to a potential treatment for a common cause of blindness
Injured optic nerves can regrow toward the brain if treated properly, University of Connecticut scientists report in the September issue of Experimental Neurology. The findings in mice could lead to a potential treatment ...
Dec 4, 2024
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Sleep apnea associated with age-related macular degeneration
A Center for Eye Research Australia study has linked low levels of oxygen in the blood overnight—a common sign of obstructive sleep apnea—with wet age-related macular degeneration.
Dec 4, 2024
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Experimental study shows connection between COVID infection and age-related blindness
An experimental study in mice shows that SARS-CoV-2 infection can damage the retinas, with long-term implications for vision. Post-acute sequelae of SARS-CoV-2 infection include various neurocognitive symptoms, suggesting ...
Dec 3, 2024
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DNA damage is key factor in age-related macular degeneration, study finds
A research team co-led by the University of California, Irvine has discovered that accumulated DNA damage in the retina is a key contributor to age-related macular degeneration and that targeting specific retinal cell types ...
Dec 3, 2024
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Research reveals hidden visual deficits and neural pathway alterations in mild TBI patients
Vanderbilt University Medical Center-led research reveals subtle changes in the visual pathways of individuals with chronic mild traumatic brain injury (TBI), even when standard eye examinations show no abnormalities. These ...
How to avoid eye infections—and what to do if you get one
Sir Elton John recently revealed on ABC's Good Morning America that he lost the sight in his right eye after suffering from an eye infection. With poor vision in his left eye too, John said. "It's been four months now since ...
Dec 1, 2024
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3D-printed hydrogel enables continuous drug delivery via contact lens
The next time you need to take a prescription drug, taking it might be as easy as putting on a contact lens, thanks to a new discovery made by University of Waterloo researchers.
Nov 29, 2024
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Preclinical tests show mRNA-based treatments effective for blinding condition
A preclinical study by Mass Eye and Ear investigators showed that a novel mRNA-based therapy may be able to prevent blindness and scarring from proliferative vitreoretinopathy (PVR) following a retinal detachment repair or ...
Nov 27, 2024
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Ex-eye bank workers say pressure, lax oversight led to errors
William Lopez remembers clearly the day in June 2017 when he says he was asked to call the spouse of a college friend who had just died and ask for her eyes.
Nov 27, 2024
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Experiments show nerve cells of blind mice retain their visual function
The retina is often referred to as an "outpost of the brain"—after all, important steps in visual signal processing do not take place in the cerebrum, but in the nerve cells in the eye. When light falls on the retina, sensor ...
Nov 26, 2024
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Early-stage trial finds stem cell therapy for retinitis pigmentosa is safe
A team of UC Davis Health researchers has shown that CD34+ stem cells can be safely administered into retinitis pigmentosa (RP) patients' eyes and may offer therapeutic benefits. The phase 1 trial also confirmed that these ...
Nov 26, 2024
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Seeing the future: How expectations guide eye movements
Eye movements are the human body's fastest and most common actions: We actively shift our gaze about two to three times per second to gain information about our environment. Where we look determines what we learn about the ...
Nov 25, 2024
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New model of neuronal circuit provides insight on eye movement
Working with week-old zebrafish larva, researchers at Weill Cornell Medicine and colleagues decoded how the connections formed by a network of neurons in the brainstem guide the fishes' gaze.
Nov 22, 2024
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Experts define elements of brain-based visual impairment in children
Experts convened by the National Institutes of Health (NIH) have identified five elements of a brain-based condition that has emerged as a leading cause of vision impairment starting in childhood in the United States and ...
Nov 19, 2024
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