#blindness

FDA Warns GLP-1s May Increase Risk of Sudden Blindness

An anonymous reader quotes a report from NBC News: The Food and Drug Administration said Monday that GLP-1 drugmakers must add a warning label about a rare eye condition that can cause sudden blindness. The condition, called nonarteritic anterior ischemic optic neuropathy, or NAION, affects the optic nerve, which carries signals from the eye to the brain. When blood flow to the nerve is reduced or blocked, it can cause sudden vision loss. The condition is permanent with no known treatment. The FDA said "there is a potential increased risk of rare NAION" in people taking GLP-1 drugs. The agency

Slashdot · EN

Why do some people hear pitch better than others? Internal noise may be the key

Woon Ju Park, writing in Scientific American, describes new research on why people who lost their sight early in life often hear so well. The study, published in the Journal of Neuroscience, points to something called internal noise: how consistently the auditory system responds to the same sound over and over. Less internal noise means […]

Adafruit Blog · EN

Motion-Induced Blindness

What: Three big, bright yellow dots. Not faint, not tiny, not hiding. And yet, stare at the middle for a few seconds and they just… leave. Sometimes one at a time, sometimes two, sometimes all three at once. This one was found by Yoram Bonneh, Alexander Cooperman and Dov Sagi at the Weizmann Institute in 2001 [1]. Their original version was a swarm of blue dots spinning on a 3D sphere, but the spinning grid with the flashing green dot is the one that took over the internet, and honestly it’s the better one.

Optical Toys · EN

Bug blindness

I used to wonder why I see so many more bugs than most people. I easily observe hundreds to thousands of bugs per week and nothing seems to work , but most people I talk to don't see anything like this . For a long time, I thought this had something to do with how I use computers but, over time, I've realized that it's mostly that people are hitting the same bugs and don't notice. If you're not a programmer, that's probably a better way to see the world , but I think curing quality/bug blindness is helpful for programmers. I've done this with a lot of friends and acquaintances (just by pointin

Dan Luu · EN