Written by Sophie Vergnaud, MD | Reviewed by Alyssa Billingsley, PharmDUpdated on July 8, 2024 Key takeaways: New research has shown a link between taking semaglutide (Ozempic, Wegovy) and a rare kind of eye stroke called non-arteritic anterior ischemic optic neuropathy (NAION) — especially in the first year of taking the medication. Semaglutide has also...
Tag: <span>Blind</span>
Blind people can’t see color, but understand it the same way as sighted people
by Johns Hopkins University Credit: Johns Hopkins University People born blind have never seen that bananas are yellow but Johns Hopkins University researchers find that like any sighted person, they understand two bananas are likely to be the same color and why. Questioning the belief that dates back to philosopher John Locke that people born blind could never...
The vision: Tailored optical stimulation for the blind
by Ecole Polytechnique Federale de Lausanne Credit: Ecole Polytechnique Federale de Lausanne Stimulation of the nervous system with neurotechnology has opened up new avenues for treating human disorders, such as prosthetic arms and legs that restore the sense of touch in amputees, prosthetic fingertips that provide detailed sensory feedback with varying touch resolution, and intraneural stimulation...
Man blind for 40 years regains some sight through gene therapy
Doctors for the first time have used a form of gene therapy to restore partial vision in a blind person, according to findings announced Monday. The research team genetically altered retinal ganglion cells to become light-sensitive in a man whose vision was destroyed by retinitis pigmentosa, a genetic disorder that breaks down cells that absorb and convert light into brain signals. Using special goggles,...
A brain mechanism underlying ‘vision’ in the blind is revealed
WEIZMANN INSTITUTE OF SCIENCE IMAGE: THE VISUAL CENTERS IN THOSE SEEING A FILM OR IMAGINING AS INSTRUCTED HAD SIMILAR TIMING IN THEIR BRAIN ACTIVITY, WHILE THOSE EXPERIENCING SPONTANEOUS HALLUCINATIONS SHOWED A GRADUAL INCREASE IN SLOW FLUCTUATIONS CREDIT: THE WEIZMANN INSTITUTE OF SCIENCE Some people have lost their eyesight, but they continue to “see.” This phenomenon,...
The glaucoma operation that saves you from going BLIND: New technique releases pressure on the eye, and saves you from needing constant eye drops
Millions of people have glaucoma, which could cause blindness if left untreated Last month Asteroulla Antoniou, 76, became one of the first to try the procedure Half a million Britons have glaucoma, which can cause blindness if left untreated. Last month, Asteroulla Antoniou, 76, a retired dressmaker from London, underwent a new operation to treat...