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Nearly two years an increasing number of players giving up glasses on her white contact lenses. As everyone knows, intense emotions, dirty air and radiation of computers overwhelm the already weak eyes. As
the best partner of white contact lenses contact lens care solution
sending rescue signals to us, to some extent eased the dry eye disease,
such as pain, how to select care solution?Eyeglass lenses can be divided into two broad categories, namely, glass lens and optical resin lens.
Glass
consists of optical glass lenses, and high refractive index lens
(commonly called the super thin slices), its high hardness and good
resistance to abrasion, the parameters of its quality and will not
change over time, but the impact resistance and weight of glass lenses
slightly worse than plastic lenses.
Plastic
lenses are much lighter than glass lenses, and shock resistance are
better than glass, but its lower surface hardness makes it easier to be
scraped. Plastic lenses and soft coated lenses,
because of its characteristics, should be careful not to allow the
mirror so the usual direct contact with hard objects, scrubbing is best
to use water (or mixing a small amount of dishwashing liquid) cleaning,
and then try with a special cloth or cotton paper quality dry eye drops
on the lens. Moreover, in poor environmental
conditions place coated lenses should be used with caution to avoid
difficult cleaning of dirt got on.
When
you select eyeglass frames, in addition to the price, appearance
standards, paying particular attention to the selected match the frame
size and my pupil distance, as it directly affects the intrinsic optical
quality glasses and wearing comfort.
On the quality of the frame to identify major may consider the following:
1, elastic frames generally good quality.
2, coating smooth shining frame quality is better.
3, solder frames of smooth, small and even better quality.
4, parts assembly work closely as well.
5, left and right mirror ring size and shape must be exactly the same, symmetrical nose."sdwwwssa3xg"