realize that wearing sunglasses is important to protect the health
of their eyes. We at Tri-State Eye Care Center help our patients protect
their vision by offering all of our nonprescription sunglasses below
the manufacturers' suggested retail price. We also provide additional
savings if contact lenses or prescription glasses are also purchased.
Add a flare to your
lifestyle with the addition of one of the great varieties of fashionable
styles of sunglasses now available in our office..
that block the sun's glare without screening ultraviolet (UV) radiation
may actually cause eyes more harm than good, warns the doctors at
Tri-State Eye Care Center. Not all sunglasses block UV radiation. In
fact, products that shade the eyes without screening UV radiation may
dilate the pupils and let in more harmful rays.
The sun emits many
types of radiation, including visible light -- what we see as color;
infrared rays -- invisible but felt as heat; and ultraviolet rays --
also invisible but often called the sunburn rays. According to PREVENT
BLINDNESS AMERICA, the UV radiation that has been linked with eye damage
is divided into several categories, including UV-A and UV-B.
to UV rays contributes to the development of cataracts; pterygium (tissue
growth on the white of the eye that can advance to block vision); skin
cancer around the eyes; and macular degeneration, the leading cause
of vision loss among older Americans. Excessive short-term exposure
can cause sunburn to the eyelids and photokeratitis, a painful sunburn
of the cornea.
While everyone is
at risk of UV's harmful effects, certain individuals are at increased
risk, especially those spending long hours in the sun because of work
or recreation. Additionally, individuals with certain retinal disorders
and persons taking particular medications, such as tetracycline, are
more sensitive to UV rays.
UV radiation is
greatest between the hours of 10 a.m. and 2 p.m., when 60 percent of
the effective UV radiation
reaches the earth's surface.
and Tri-State Eye Care Center offer the following tips for selecting
- Choose sunglasses
that provide 99 to 100 percent protection from both UV-A and UV-B.
Avoid products that say "Provides UV Protection" without
specifying exactly how much UV radiation the product blocks. Sunglasses
should also block 75 to 90 percent of the visible light spectrum.
- Ophthalmic quality
sunglasses can be made with prescription lenses. They can be adjusted
better and will hold their adjustment longer for greater comfort.
Ophthalmic quality sunglasses also provide greater durability, warranties
and/or capabilities for repair.
- To be sure the
lenses block enough light, try them on in front of a mirror. If you
can see your eyes easily through the lenses, they probably aren't
dark enough for comfortable viewing outdoors.
- Ideally, your
sunglasses should wrap all the way around to your temples, so the
sun's rays can't enter from the side.
- The best lens-color
choices are gray, which does not modify colors, green or brown. Wrap-around
lenses and frames boost UV protection in bright environments. Wearing
a wide-brimmed hat or cap in addition to sunglasses also increases
UV protection and can help cut brightness and glare.
- Most people
wear sunglasses to reduce glare, whether from the bright sun or from
light bouncing off snow, water, sand or highway pavement. Polarizing
sunglasses are more effective at eliminating reflected glare than
- If you wear
your sunglasses for hazardous sports or work, you should choose polycarbonate
lenses, which provide the greatest available impact protection.
- Children and
teen-agers need protection, too. They typically spend more time outdoors
than adults. Since the effects of UV radiation on the eyes are cumulative,
it's important to develop good protection habits early.