The cutting edge of
spectacle lens technology.
Over
the last couple of years many new developments in spectacle lens technology have
evolved such as
thinner, lighter lenses, special lens coatings, and new types
of light sensitive lenses that have all been
designed to improve your vision
and ensure that your spectacles are more comfortable to wear.
At Bethell & Clark Opticians we are free to choose from one of the wide selections of quality spectacle lenses, offering brand names such as Seiko, Varilux, Zeiss, Hoya and Tranitions to name but a few. This means they can offer a wider choice together with a personal Service that caters for your particular requirements, lifestyle and budget.
If
you have trouble focusing both close up and far away, you are probably familiar
with bifocals or
trifocals. These lenses have different segments for reading
and distance and some people dislike them for
cosmetic reasons, or find that
the dividing lines detract from visual comfort. If this applies to you the
answer could be 'bifocals without lines', these are also known as progressive
or Varifocal lenses. These
lenses progress gradually from a distance strength
at the top to a reading strength at the bottom, giving a
range of focusing
strengths in between. There can be some blurring with peripheral vision, but we
are
finding that this type of lens is becoming increasingly popular as people
discover the more natural
correction they offer.
Anti-Reflection Coated Lenses
Lens reflections can be a problem for spectacle wearers.
There
are four different types of reflection:
Reflections on the front of the lens,
seen by other people.
Reflections from behind which are superimposed on the
wearer's field of vision.
Internal reflections caused by lens thickness, particularly
noticeable in high-powered lenses.
Reflections at the front surface of the
eye.
All
these reflections can reduce the amount of light reaching the eye by, as much
as 15%, which means
both vision quality and contrast are impaired. There is
a solution. By treating the lens with special layers
of coating, reflections
can be limited to less than 1% and the problems are almost eliminated.
Because anti-reflection lenses give such a dramatic reduction of reflections, the benefits are significant.
Clearer
and sharper clarity of vision.
Closer to natural vision.
Improved driving
vision - especially at night.
Less VDU glare.
In
short, everyone who wears spectacles will enjoy the overall improved visual comfort
provided by anti
reflection coatings.
