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Surgery is used to treat some intraocular melanomas but is not
used to treat intraocular lymphoma. It is used less often than in the
past, as the use of radiation therapy has grown.
The type of surgery depends on the location and size of the
tumor. Patients are under general anesthesia (in a deep sleep) during
these operations, and they usually leave the hospital 1 or 2 days
afterward. The operations used in treating people with melanoma
include:
Iridectomy:
Removal of part of the iris. This operation is used for very small iris
melanomas.
Iridotrabeculectomy:
Removal of part of the iris, plus a small piece of the outer part of
the eyeball. Small iris melanomas may be treated with this technique.
Iridocyclectomy:
Removal of a portion of the iris and the ciliary body.
This operation is also used for small iris melanomas.
Resection: Doctors
in some cancer centers may try to surgically resect (remove) a melanoma
of the ciliary body or choroid. This can be done for small melanomas
but is technically difficult.
Enucleation: Removal
of the entire eyeball. This is used for some smaller melanomas and for
larger melanomas (T4 or large T3 tumors), especially if other treatment
options would destroy useful vision in the eye anyway. During the same
operation, an orbital implant is usually put in to take the place of
the eyeball. The implant is made out of silicone or hydroxyapatite (a
substance similar to bone). It is attached to the muscles that moved
the eye, so it should move the same way as the eye would have. Within a
few weeks, you visit an ocularist (a specialist in eye prostheses) to
be fitted with an artificial eye that has been made to match the size
and color of the remaining eye. The artificial eye is a thin shell that
fits over the orbital implant and under the eyelids. Once the eye is in
place, it will be hard to tell it apart from the real eye.
Possible risks and side effects of surgery
All surgeries carry some risk, including the possibility of
bleeding, infections, and complications from anesthesia.
Surgery on the eye can lead to the loss of some or all of the
vision in that eye. This may be immediate (as is the case after more
extensive surgeries like enucleation) or it may develop later on. Of
course, in some cases vision may have already been damaged or lost
because of the cancer.
Removal of the eyeball (enucleation) obviously can affect a
person's appearance. As noted above, an artificial eye can be put in
place to help minimize this.
Last Medical Review: 03/03/2009 Last Revised: 05/14/2009
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