Vision Correction Lenses
For a variety of reasons,
some patients are not good candidates for laser
vision correction. Fortunately, a number of promising
alternatives are currently available or likely to be
FDA-approved in the near future.
All of these alternatives
involve the placement of an artificial lens inside the
eye. There are two types of lenses available: Phakic intraocular lenses
(phakic IOLs / pronounced "fay-kick"), which are placed inside the eye
in addition to the natural lens, and pseudophakic IOLs,
which replace the natural lens.
The phakic IOL that is already
FDA-approved is called the Verisyse by AMO. This lens is
inserted through an incision in the cornea and clips
onto the colored iris for stabilization and positioning:
An alternative lens is the Visian by Staar Surgical.
It is likely to receive FDA-approval in the near future.
The Visian is
also inserted through a small incision in the cornea,
but it is placed behind the colored iris, instead of clipping onto
its front surface:
Dr. Hale has already
taken the certification course for the Visian lens and
we are awaiting its FDA-approval. We are also considering
working with the Verisyse, but due to concerns over its
iris fixation, we intend to observe the results of its
use in the general public before adopting it
for our own patients.
pseudophakic IOLs have been used to replace the natural
lens during cataract surgery. However, with the March
2005 FDA approval of the ReSTOR lens, which has the
ability to correct both near and distance vision,
pseudophakic IOLs are now an excellent alternative to
laser vision correction in select patients, especially
those over 40 who would benefit from improved near and
Please see the
Cataract Surgery Lenses
section for a thorough discussion of pseudophakic IOLs.
All intraocular lenses
have potential complications that are different than
those of laser treatments, as they are placed inside the
eye and laser treatments are performed on the surface or
under a thin flap of corneal tissue. We will discuss
these differences with you in detail at the time of your