A neat fix for ageing eyes could be tested in humans next year. The treatment, which involves replacing the contents of the lens in the eye with a soft polymer gel, could allow millions of people to throw away their reading glasses.
"At first, we see it being used as an improvement to current cataract surgery," says Arthur Ho at the University of New South Wales, a key member of the Australian governments multinational Vision Cooperative Research Centre (Vision CRC) that is working on the technique. "But once it is shown to be safe and effective, we think that more and more younger people who are starting to need reading glasses will adopt it as well."
The eyes lens focuses by changing shape. When muscles in the eye relax, the lens is pulled flat to focus on distant objects. When they contract, the lens returns to a fatter shape, bringing closer objects into focus. But as we age, our lenses harden, preventing them reforming into their fatter shape: the lenses of 40-year-old people have only a quarter of their capacity to change shape, or "accommodate", as they did at birth. After the age of 45, most people need reading glasses, or bifocal glasses.
World first: Massive thrombosis removed during early pregnancy
20.07.2017 | Universitätsspital Bern
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19.07.2017 | Universitätsspital Bern
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
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