Contact
lenses are delicately crafted, very thin optical discs about the diameter
of a shirt button. They are comfortably held in place by the eye's
own natural tears, which are always present between the lens and the
eye. Most common vision conditions can be treated with contact lenses,
and in the last few years, technological advances have produced many
more options for treating each kind of problem.
The superior
quality of today's lenses, combined with professional fitting and
aftercare, ensures your lenses will be prescribed for ultimate fit
and comfort. Our office has many lens options to choose from in determining
the best lens type to suit your vision needs and your lifestyle.
Choosing
a contact lens
This
can be very confusing because of the many different types and brands
available. The difference between soft and gas permeable contacts
is the actual make-up of the lens.
A soft
lens is a pliable plastic, whereas a gas permeable lens is a more
rigid plastic that has replaced the "hard" contact lens.
The oxygen level is higher in the gas permeable lens, making it more
comfortable to wear than "hard lenses". In the past, your
prescription determined your lens type. Today, your prescription still
remains a factor; however, there are additional considerations, such
as occupation, visual requirements, and personal preference. A common
misconception regarding contact lens wear is that individuals with
astigmatism must wear hard lenses. On the contrary, soft contact lenses
are available to correct astigmatism.
Gas permeable
lenses are a type of hard lens and disposable lenses are soft. The
most common type of disposable lens is worn on a daily or overnight
basis for two weeks and then thrown away. The convenience of disposable
lenses is a popular feature. They come packaged in pairs of six so
extra lenses are available in case of a loss or tear. In addition,
clean lenses are worn every two weeks. Soft and hard contact lenses
are a wonderful alternative to glasses, and are worn safely and comfortably
by millions of people. Schedule an exam to find out if contact lenses
may be right for you.
The contact
lens fitting involves special measurements of the curvature of the
front surface of your eye with an instrument called a keratometer.
This gives Dr. Milano a starting point for determining the proper
curve and size for your contact lenses. Contact lenses that are too
flat or too steep for the shape of your eyes will be uncomfortable
and/or can cause damage to the front surface of the eye, the cornea.
Your contact lens fitting may also include additional computerized
measurements of your eyes that allow Dr. Milano see the curve of the
entire front surface of your eyes.
Many
contact lens fittings include an evaluation of the tear film on the
front of your eyes. If your eyes are too dry, contact lenses may not
be for you. If your eyes are marginally dry, some contact lenses work
better than others. Typically, if your eyes are dry, you should moisten
them frequently with artificial tears. Also, extended wear of contact
lenses may not be possible. Your doctor will also carefully evaluate
the health of the cornea with an instrument called a biomicroscope
(also called a slit lamp). This detects other problems that could
make contact lens wear difficult for you. It also gives Dr. Milano
a baseline from which he can monitor any changes to your eyes due
to contact lens wear.
Next,
trial lenses may be applied to your eyes and evaluated with the biomicroscope
to judge the fit of the lenses and how much they move with each blink.
This step is also done at each follow-up visit in the fitting process.
Sometimes, lenses that appear to fit fine when first applied can tighten
up after several hours of wear. Checking the fit of your lenses several
times is essential to ensure your lenses continue to fit properly
and cause no adverse effects to the cornea.
Finally,
a review of how long to wear your lenses and how to care for them
is an important part of the contact lens fitting.
After
the doctor is sure your lenses fit properly, provide satisfactory
vision and comfort, and are causing no harm to your eyes, your final
contact lens prescription can be written.
Follow-up
exams and replacement contact lenses
After
your contact lens fitting is complete (typically 2 or 3 office visits),
you should have your eyes and contact lenses examined at least once
per year. All contact lenses, no matter how well they fit or how new
they are, reduce the amount of oxygen to the cornea and increase your
risk for eye infections. Annual exams are important to maintain the
health of your eyes and avoid unnecessary complications from contact
lens wear.
Caring
for your soft contact lenses.
 |
Wash
your hands with soap and water and dry them on a lint free towel
before handling your lenses. Shorter fingernails are preferred
to reduce the possibility of damage to the lens and your eye. |
 |
Remove lenses from the case and rinse thoroughly. It is
best to remove the same lens, either right or left, each time
to avoid mix-ups. |
 |
Inspect
the lens by placing it on your index finger. Make sure it is clean
and not inverted before inserting the lens. If the lens is inverted
or inside out, it will appear to flare out on the sides of the
lens. |
 |
Insert
the lens by holding the upper lashes with one finger on the hand
not holding the lens. Use the middle finger on the lens hand to
pull down lower eyelid. Look straight ahead or slightly up. Place
the lens directly on the center of the eye. Once the lens is in
place, you can blink freely. |
 |
Remove
your contacts only after washing, rinsing, and drying your
hands. Gently slide the lens to the white portion of the eye.
Carefully squeeze the lens between your thumb and index finger
and remove. |
 |
Clean
your contacts after wearing by placing the lens in the palm of
one hand. Place a few drops of cleaning solution on the lens and
gently rub the solution in a circular motion. Clean each lens
separately. |
 |
Rinse
the contact case with lens solution after removing the lenses.
Let the case air dry before refilling with new solution. |
 |
Store
lenses in their case by fully immersing them in the prescribed
solution. Do not store soft contacts in tap water. Use only sterile
lens solutions. |
 |
Eye
drops can be used if the lenses are dry or vision appears
blurry while being worn. Use eye drops to loosen lenses if they
feel dry or sticky before removal. |

