CONTACT
LENSES - WHAT
ARE YOUR CHOICES?
Soft
contact lenses: first
introduced over 20 years ago, are made from flexible,
water-absorbent plastics. These contacts are anywhere from 30
to 80
percent water. Some soft lenses are designed to be thrown away daily,
weekly,
or every other week depending on your eye care professional's
instructions.
Disposable
contact lens
options have increased dramatically. Even one day
disposable contact lenses are now available. Other types of lenses can
be used
for up to a year. Many people enjoy the comfort of soft contact lenses.
They're
easy to insert and fit comfortably and securely.
Another popular trend is the colored
contact lens
option. Recent developments have allowed users to change
their eye color simply by changing their contact lens.
Although the standard "hard lens" introduced in the 1950's are
still around, technology and materials developed have made
these lenses
virtually obsolete. Fewer than 0.5 percent of lens wearers own them.
Two types
of contacts are fitted today - soft and rigid gas permeable, also known
as
RGP's. RGP lenses
are made of special, firmer plastics that are suited
for the passage of oxygen and other gases. These lenses are very
durable and
typically last longer than soft lenses. RGP lenses offer crisp vision
and are
often preferred by people with high degrees of astigmatism. While they
make
take a little longer to get used to, regular wearers find them to be
comfortable and the visual acuity outstanding.
DISPOSABLE
CONTACTS - THE ULTIMATE WAY TO SEE
Disposable
contact lenses are usually prescribed
in multi-packs, providing several weeks supply at a time. The most
common and
popular brands are Acuvue
, Focus
and Biomedics.
A
growing number of people now
use these products, which can be worn for either a single day, or up to
seven,
depending on the wearing schedule prescribed by your eye care
professional.
Even bifocal
wearers can now get discount prices when ordering.
Six per box is the average number per supplier. They are usually used
for
anywhere from 1 to 2 weeks on a daily wear basis and approximately 1
week if
used as extended wear. Replacing frequently usually means
better eye
health. Other obvious advantages are having spare ones
immediately
available should one get torn or lost.
Be
sure you wear your back up eyeglasses
at least once a week to give
your eyes and cornea a chance to reoxygenate. Symptoms of
overwear
include burning eyes, dryness, blurred vision and seeing halos around
lights. This can lead to serious corneal problems and
infections. Consult
your eye doctor regularly for eye examinations and follow up care.
Frequent and Planned
Replacement
contact
lenses are replaced on a planned schedule, most often every two weeks,
monthly
or quarterly. These items usually come 4 to 6 per box. Eye
care
professionals may recommend enzyming them if they are used longer than
one
month. A popular brand is the Focus
Monthly
from Ciba Vision.
|
COLORED
CONTACTS - THE LATEST TREND
|
Colored
contact lenses are a growing
trend among contact lens wearers, they change
the natural eye appearance to a different color. The leading
manufacturers continue to increase the number of options available to
consumers.
In addition, colored contact lenses are also now available in
disposable
form. The originator of the changing eyes fad, Wessley Jessen
now make a
two week disposable, called Freshlook.
It is available in Blue, Green, Violet or Hazel. The latest
addition to
the collection is the Freshlook
Colorblends available in Blue,
Brown, Green or Gray. Some users have
reported that these have a more natural appearance when used on darker
eyes.
BIFOCAL
CONTACT LENS - BOOMERS BATTLING BIFOCALS
A
bifocal
contact lens may be an option
for you if you are on the far side of
40. Should you find that reading the phone book or newspaper
is suddenly
a chore, welcome to middle age, and presbyopia.
Presbyopia,
the farsightedness that is inevitable with aging, is caused
by the gradual hardening of the lens of the eye. It becomes less able
to change
shape, preventing us from focusing on close objects. Most people become
aware
of deteriorating lose vision in their mid-40s.
Many people turn to inexpensive reading
glasses,
but it's important to have regular eye exams. Prescription lenses and
bifocals
allow a close-up correction giving the best possible vision for both
close and
far. If you are bothered by the telltale line that marks the bifocal,
you may
opt for bifocal
contact lens.
Should your doctor decide that these are not an option, another
increasingly
popular alternative is called monovision.
You wear a contact with a
close-up correction in one eye and if necessary, a contact for distance
correction
in the other. Your brain gradually learns to adapt, and you see
reasonably well
thought out your range of vision.
The close-up contact generally goes in the non-dominant eye. Most
people adapt
to this type of len correction in a week or 10 days even if they have
never
worn contacts before. Even people with astigmatism can be successful
with
monovision, often using rigid gas-permeable contacts instead of soft
contacts
for more reliable correction.
While true bifocal contact lenses are available, most people adapt to
them less
successfully than to monovision Bifocal contacts are difficult to fit,
and they
don't work for everyone. However, the latest disposable
bifocal contact lenses from
Acuvue have been very successful.