There are two general classes of IOLs (Intraocular Lens Implants) now
available. When cataract surgery is performed, the natural lens
inside the eye is removed because it is cloudy and interferes with
vision. Once this cataract is removed, a new lens implant must be placed
inside the eye to restore vision.
For the last 20 years, millions of patients have received Standard
or Conventional (single vision) IOLs with great success. These IOLs are
typically set to provide distance vision and do not have the ability to
change focus. Therefore, patients receiving these types of lenses
require glasses for many functions after surgery, particularly reading.
Within the last few years, newer Deluxe IOLs have become
available. These IOLs are distinguished by their ability to provide a
greater range of vision for some patients. Instead of only having crisp
distance vision, many of these patients demonstrate good distance and
near vision. This further reduces the need for glasses or contact
lenses.
As you might expect, these lenses are more expensive than the
conventional IOLs. Private insurance and Medicare do not typically pay
for the added cost. Recent rulings by Medicare, however, have made it
possible for Medicare recipients to obtain Deluxe IOLs and pay only the
additional cost out of pocket. Medicare will still cover the cost of
the surgery itself as in the past. Private insurance recipients will be
considered on a case by case basis depending on the policy.
Several lenses qualify as Deluxe IOLs. Two such IOLs are the
CrystaLens and the Acrysof Restor Lens. Consultation with your doctor
is needed to determine if you are a candidate for either of these IOLs.
The Harbin Clinic Eye Center was
the first practice in the state of Georgia, and one of the first
in
the country, to implant the CrystaLens after it received FDA
approval
in 2003.
The CrystaLens is one
type of Deluxe intraocular lens (IOL) implanted during cataract
surgery. As mentioned above, Standard (single vision) IOLs typically
are set to provide distance vision and do not have the ability to
provide a full range of vision. Most people who have single vision lens
implants MUST wear glasses for middle and near vision.
In contrast, the
CrystaLens is thought to use the eye’s natural focusing muscles to
change focus. This means that the CrystaLens may not only restore
distance vision, but may also reduce dependence on reading glasses.
The Acrysof Restor
Lens in another type of Deluxe IOL. It also has the ability to reduce
dependence on glasses and contact lenses for distance and near viewing.
In contrast to the change in position thought to account for the
CrystaLens’ action, the Restor Lens is manufactured in such a way as to
provide multiple levels of vision. It is not thought to flex or change
focus within the eye.