|
Eyeglasses
Eyeglasses have been an accepted way to correct
vision for hundreds of years. Today, despite
advances in contact lenses, eyeglasses remain a popular choice because
they can correct more vision problems, are
easier to use and maintain than contact lenses,
and they are often considered a fashion accessory.
When shopping for eyeglasses,
here are some
tips:
- Frames - your choice of frames is mainly
in material (metal or plastic), type (rimless,
partial rim, and full rim), and style. Like
anything else fashion related, name brand
frames can be very expensive, where as generic
frames are more reasonably priced. A comfortable
fit requires that the nose bridge width and
the ear piece length be appropriate to your
face and the frames hold the lenses appropriate
to the location of your eyes, so be sure
the frame size you pick meets these requirements.
Most minor adjustments can be made to most
frame styles by you or your eye care professional.
- Lenses - in addition to being the right prescription
for your eyes, lenses can be
made with additional
features:
- tinting - a light coloring, mainly for fashion
reasons
- glare reducing - to help with night driving
- UV coated - to provide extra protection when
outdoors
- sunglass tint - when used exclusively outdoors
in bright sun, this gives
the advantage of
both sunglasses and prescription
lenses.
- photo sensitive - these lenses automatically
darken in bright light to
enable one pair
of glasses to be for both
regular and sun
wear; the downsides are the
transition time
when you go from a bright
area to a a dark
area and the fact that they
may darken because
of ambient light rather than
the brightness
of what you are viewing.
Plastic lenses are lighter
than
glass but
are more easily scratched and
harder to care
for. If you choose plastic,
consider a scratch
resistant coating.
If you already have frames that
you like
but your eye prescription has
changed, you
can usually replace just the
lenses and keep
using your current frames.
See also: sunglasses. |
|
|
