Essay On Advantages And Disadvantages Of Lasers

Along with scientific development in all aspects of life, diseases treatments have naturally affected by technology and novel procedures. The most common types of cancer treatment, such as surgery, chemotherapy, radiation therapy, etc. were introduced one by one to extol life quality. Although these treatment types are very beneficial and effective in some cases, but drawbacks are the other side of the coin. Surgery has been used to treat cancer for many, many years. Surgery also plays a key role in diagnosing cancer and finding out how far it may have spread [ ]. Radiation therapy uses high-energy particles or waves to destroy or damage cancer cells. It is one of the most common treatments for cancer, either by itself or along with other forms…show more content…
Lasers are also being studied for treating or preventing side effects of common cancer treatments [ ]. For instance, some studies are looking at how low-level laser therapy (LLLT) might be used to prevent or treat severe mouth sores caused by chemotherapy, and how they may be used to treat the swelling (lymphedema) that can result from breast surgery. The CO2 and Nd: YAG lasers are used to shrink or destroy tumors. They can be used with thin, flexible tubes called endoscopes that let doctors see inside certain parts of the body, such as the bladder or stomach. The light from some lasers can be sent through an endoscope fitted with fiber optics. This lets doctors see and work in parts of the body that could not be reached otherwise except by major surgery. Using an endoscope also allows very precise aim of the laser beam. Lasers can be used with low-power microscopes, too. This gives the doctor a larger view of the area being treated. When used with an instrument that allows very fine movement (called a micromanipulator), laser systems can produce a cutting area as small as 200 microns in diameter – that’s less than the width of a very fine thread. Lasers are used to treat many kinds of cancer [ ]. In the intestines or large bowel, lasers can be used to remove polyps, small growths that might become cancer. The CO2 laser can be used to treat pre-cancerous tissue and very early cancers of the cervix, vagina and vulva. Lasers are also used to remove tumors blocking the swallowing tube (esophagus) and large intestine (colon). This does not cure the cancer, but it relieves some symptoms, such as trouble swallowing. The Nd: YAG laser has also been used to remove cancer that has spread to the lungs from other areas. This helps avoid surgery that would require removing large sections of lung. This type of laser cannot cure cancer, but it can improve

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