A revolutionary new eye implant is set to make reading glasses a thing of the past for millions of people.
The
surgically inserted lens for longsightedness gives patients
near-perfect vision just days after they have an operation lasting only
minutes.
Known as the Symfony, it restores sight to pin-sharp focus from just inches away all the way to the horizon.
Surgeons
hailing the ‘breakthrough’ invention say that until now no insertable
lens has been able to mimic natural vision so closely.
The lenses are made of plastic and should, in theory, last a lifetime.
Currently
surgeons can insert ‘monofocal’ lenses to treat cataracts, but they
typically leave patients still needing reading glasses.
There have
also been multi-focal lens implants to correct vision both near and at a
distance, but these often produce halo bursts and glare and give a
‘stepped’ effect rather than smooth focus.
By contrast, the Symfony design gives an almost perfectly continuous experience.
The
lenses can also be used to correct short sight and stigmatism – a
condition which results from the eyeball being misshapen – and are best
suited to older people.
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