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Fluid Lens may Help Regain Youthful Vision to People With Failing Eyes
When visible light was shone on the polymer, he said, molecules in it crosslinked to create a soft gel polymer.
"After it's crosslinked it has the consistency then of honey. The muscles in the eye are then able to again squeeze (the lens) and restore that ability to close focus," he said.
He even revealed that scientists in China had tested the lens in monkeys.
"We are able to give the eye the properties we would want it to have," he said.
According to him, the lens polymer has also been tested in human cadaver lens capsules in India and the US, using a machine that simulates the eye muscles.
McLean and his colleagues are expecting to begin human trials in the next one to two years, and say that other tests on the safety and effectiveness of the lens will also be conducted during the next 10 years.
"There are some unknowns here," he says.
McLean has revealed that the new lens material is based on siloxane, which is very biocompatible and is already used in biomedical devices.
Even though it has been found to be safe when implanted for a short time in live rabbits, McLean concedes that longer-term tests are required.
He even insists that it needs to be ensured that the lens material does not leak from the eye capsule or go opaque over the long term.
Source-ANI
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