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Vision

Science

Nosy fish inspires help for the eyes

Presbyopia is a common visual condition, in which the eye's lens stiffens to the point that it can't focus on close objects. Glasses, surgery and regular contact lenses do help, but they also cause a loss in contrast, sensitivity and night vision. That's why scientists from the University of Wisconsin, Madison are developing an alternative – self-focusing contacts that are inspired by a fish.Read More

Medical

Lab-grown eye tissue restores rabbits' vision

In what marks important progress toward a future where defective vision could be treated with lab-grown eyeball components, an international team of scientists has used human stem cells to build layers of eye tissue that was then implanted into rabbits to restore vision. With promising early results, the researchers say their findings could usher in trials where such transplantations are put to the test in humans.Read More

Medical

Gene-editing tool may prevent blindness

A team of researchers is working to turn the powerful CRISPR gene-editing tool towards treating a serious eye disease. Early results are promising, with the team successfully correcting the mutation that causes the condition in cells outside the body.Read More

Biology

New software provides an animal-eye view of our colorful world

Have you ever looked at a flower and thought, "I wonder what these colors would look like to a bee"? Perhaps not, but in any case, you can now find out using your own camera and computer. That's because scientists from the University of Exeter have developed the Multispectral Image Calibration and Analysis Toolbox, a piece of free software that lets you see the colors in photos the way that various animals would see them.Read More

Biology

Researchers simulate what "bionic sight" may look like

It's easy to imagine bionic sight as crystal clear and even enhanced, like the augmented body parts in science fiction. But the reality could be very, very different for a typical bionic eye recipient. Researchers at the University of Washington developed visual simulations that indicate what the world might look like to people with retinal implants. The resulting images are, in a word, blurry.Read More

Health & Wellbeing

Opternative's online eye-testing service returns prescriptions in 24 hours

Taking time out of your day to make an appointment and see an optometrist isn't always that agreeable, and that's before they blow those little puffs of air onto your eyeballs. But one Chicago-based startup has visions of making eye examinations a lot more accessible. Since 2012, Opternative has been developing an online eye tester that lets users obtain prescriptions for glasses and contacts from the comfort of the home or office. And now with clinical trial success under its belt, it's rolling the service out to the public.Read More

Medical

Implantable pump to regulate fluids in the eye and preserve vision

When its levels are slightly off-kilter, eye fluid can create pretty big problems for our vision. When blockages occur they can lead to a build up in pressure that destroys the optic nerve and causes blindness, a condition we know as glaucoma. In contrast, a lack of fluid can cause the eye to cave in and stop functioning, a disease known as phthisis bulbi. Currently, little can be done about these irreversible conditions once they take hold, but Fraunhofer researchers have a potential solution in the works by way of a microscopic pump that can be implanted in the eyeball to regulate ocular pressure.Read More

Health & Wellbeing

AdlensFocuss eyeglasses switch focus with the twist of a dial

A few years ago, UK-based Adlens developed self-adjustable glasses designed to let those in the developing world dial in their ideal magnification level – no optometrist required. Now the company is bringing the technology to the developed world as an alternative to bifocals. Instead of looking through a different area of the lenses (and tilting your head forward and back) to switch from near to far objects, the magnification of the AdlensFocuss glasses is adjusted by a small dial on the arm.Read More

Medical

Newly identified protein may hold key to preventing diabetes-induced blindness

Diabetic retinopathy is one of a number of nasty effects diabetes can have on the human body. The disease sees the development of leaky blood vessels in the eye that over time lead to permanent loss of vision. Though it is the leading cause of new cases of blindness in American adults, its progress can be slowed by certain drugs or laser treatment. But research has now uncovered a new protein found to drive the condition, raising the possibility of preventing it altogether.Read More

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