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PolyU invents new contact lenses Poor eyesight progress is slowed down 2018.01.31
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INVENTED by a Hong Kong university department, contact lenses that slow the progress of short-sightedness by 60 percent have been put into mass production. Made for short-sighted children aged six to 18, the lenses will be on sale soon, and a year’s supply of four pairs will cost HK$8,800.
Around 10 years ago, the Hong Kong Polytechnic University invented Defocus Incorporated Soft Contact (Disc, 光學離焦) technology, which slows down the speed of short-sightedness progression in children. This technology can even be used on electronic screens and lowers the chance that users’ shortsightedness would worsen.
To Chi-ho (杜嗣河), of PolyU’s School of Optometry, said the user’s vision might still be a bit unclear, as if looking into a fog. He said the research team published their findings around 2013, but could not find ways to start mass producing the lenses.

(This article is published on Goodies on 31 January 2018)


1. progress (n)
    發展

2. short-sightedness (n)
    近視

3. mass production (n phr)
    大量生產

4. optometry (n)
    視光學





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  1. 1. How much is one pair of the special contact lenses?
    A. HK$1,000
    B. HK$2,200
    C. HK$8,800

  2. 2. When did PolyU come up with the Disc technology?
    A. Two years ago
    B. 10 years ago
    C. Five years ago

  3. 3. When did the research team publish its findings?
    A. 2013
    B. 2008
    C. 2018

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