Skip to content  Cancer Health Center  Font Size     Cryotherapy
is a treatment that uses an instrument to freeze and destroy
abnormal tissue, such as carcinoma in situ. This type of
treatment is also called cryosurgery.   Thermotherapy is the use
of heat to destroy cancer cells. Thermotherapy may be given
using a laser beam aimed through the dilated pupil or onto the
outside of the eyeball. Thermotherapy may be used alone for
small tumors or combined with chemotherapy for larger tumors.
This type of treatment is also called laser therapy.
Chemotherapy is a cancer treatment that uses drugs to stop the
growth of cancer cells, either by killing the cells or by
stopping them from dividing. The way the chemotherapy is given
depends on the stage of the cancer and where the cancer is in
the body.  There are different types of chemotherapy:    •
Systemic chemotherapy: When chemotherapy is taken by mouth or
injected into a vein or muscle, the drugs enter the bloodstream
and can reach cancer cells throughout the bod