Scientists are learning that some astronauts' eyes change shape after time in space, leading to vision problems. But a sleep sack being developed might offer relief.
Cancer cells, it turns out, reflect light in a particular, polarized way that mantis shrimp can see. A tiny camera based on the shrimp's eye might help doctors better visualize tumors during surgery.
Losing vision due to macular degeneration can spark many other losses, and patients are more apt to be depressed. An eye doctor discovers there are things she can do to help.
It's the kind of oops no scientist wants to make. But the researchers who published a paper saying that watching sad movies makes it hard to perceive the color blue now say they erred.
In a new study, an easy-to-use app did just as good a job as the machines in an eye doctor's office. That's a boon for people in low-income countries — and really for anyone with vision issues.
In some counties in the South, almost 20 percent of adults have severe vision loss. And those communities are also likely to be among the nation's poorest. Lack of regular eye care is just one issue.
Six years ago, husband-and-wife scientists used gene therapy to cure colorblindness in monkeys. Now they're trying to make it work for the millions of people with faulty color vision.
The area of the brain that recognizes faces can use sound instead of sight. That recent discovery suggests facial recognition is so important to humans that it's part of our most basic wiring.