Phakic IOL
"Phakic" refers to
an eye that still has its natural lens in place.
"Aphakic" refers to an eye that has had its natural
lens removed. Therefore, a Phakic IOL is in
artificial Intraocular Lens (IOL) that is implanted
inside the eye without removing the eye's natural
lens.
Both the cornea and
the lens are responsible for focusing light images
on the retina. The most common form of refractive
surgery, PRK and LASIK, change the focusing power of
the eye by removing tissue from the cornea. For
those who were too nearsighted for farsighted to
have their corneas reshaped, an intraocular
procedure that replaced the natural lens with an IOL
was the only viable alternative until Phakic
implants.
When we are young,
the natural lens inside the eye changes shape to
help us see clearly in the distance and up close.
This is called "accommodation." Usually, around age
40 the natural lens loses its ability to change
shape. This condition is called "Presbyopia."
Phakic Intraocular
Lenses or IOLs are
ideal for younger patients whose natural lens can
still change shape. Phakic IOLs can be thought of as
implantable contact lenses. Some Phakic IOLs are
designed to be placed in front of the iris (colored
part of the eye) while others are designed to be
placed behind the iris.
Performed as an
outpatient procedure, the Phakic lens is placed inside the
eye through a very small, self-sealing incision. You
will remain comfortable as the eye is completely
anesthetized. Everyone heals differently, but many
patients report improvement in their vision almost
immediately, and most resume their normal activities
within a day or two. One eye is done at a time, and
the second eye is usually done in a week or two.
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