The light beam produced by most lasers is pencil-sized, and maintains its size and direction over very large distances; this sharply focused beam of coherent light is suitable for a wide variety of applications. Lasers have been used in industry since 1964 for cutting and boring metals and other materials, and for inspecting optical equipment. In medicine, they have been used in surgical operations. Lasers have been used in several kinds of scientific research. Lasers have opened new fields in scientific researches; such as, general and open surgeries, dentistry, urology, veterinary. One important result of laser research is the development of lasers that can be tuned to emit light over a range of frequencies, instead of producing light of only a single frequency. Lasers have also been used in plasma physics and chemistry.
About general surgical procedure, it can be performed using lasers. General surgeons use a variety of laser wavelengths and laser delivery systems to cut, paste vaporize or remove tissue. The major use of “laser surgeries” actually use the laser device in place of other tools such as electrosurgical units, surgery probes or microwave devices to accomplish a standard procedure like breast surgery or surgical removal. Yet, lasers allow the surgeon to accomplish more complex tasks, reduce blood loss, decrease postoperative discomfort, reduce the chance of wound infection, decrease the spread of some cancers, minimize the extent of surgery in selected circumstances and result in better wound healing, if they are used appropriately by a skilled and properly trained surgeon.
The Essay on Plastic Surgery Patients Patient Surgeons
1 Most of us don't like some aspect of our appearance, whether it's sagging eyes or excess weight in particular areas, to name a few complaints. Lately a record numbers of Americans are doing something about it by having plastic surgery. Since 1995, the number of cosmetic procedures, which range from liposuction to facelifts, has almost tripled (English 23). Is that a healthy choice-or a dangerous ...
The use of lasers in dentistry has advanced since the first laser was developed in the early 1960s. Early researchers looked to lasers as a potential method for altering the enamel surface making it less susceptible to acid demineralization. It is this demineralization that leads to the development of dental decay. This research has progressed over the years and the future of lasers reducing dental decay seems promising. The development of many different types of lasers during the last 40 years has offered researchers many wavelengths of laser light, which have been investigated by researchers. The most common laser in dental surgery has been the CO2 laser. It is this laser that is used commonly for surgery of the gingival (gum) tissues. Many of the reports suggest that this laser is beneficial because it allows for surgery without much bleeding. Regarding to this point, many patients also report that when the CO2 laser isn’t used for surgery they do have pain following surgery.
However, various types of lasers are utilized to successfully treat a number of diseases of the urinary and genital systems. The more common diseases include: urinary stones, junction, urethral stricture, and benign enlargement of the prostate (BPH) urethral strictures, benign warts of the penis and urethra, and superficial cancers of the penis. According to the heading of “The lasers beam in use of science.”, Ph.D Sezgin Sun says that, “A majority of such treatments requires general anesthesia and all performed as outpatient shown us with little or no blood loss and excellent results.”
About Veterinary field, surgical lasers comprise a growing field of new technology available to practicing veterinarians. Although lasers have been used for animal surgery and diagnostics for over 15 years, most work was performed at universities. Currently, carbon dioxide, diode, and lasers are being used for vaporization, excision, or photocoagulation of tumors and other types of pathologic tissue in general soft tissue surgery, endoscopic procedures and lithotripsy. The use of lasers in veterinary medicine is expanding rapidly to meet the needs of animals and their owners for the 21st century.
The Essay on The Reasons for the Popularity of Plastic Surgery in Recent Years
Outline: a. Children Should /Should Not Be Left Fortunes Nowadays, whether children should be left fortunes has been a controversial issue. As far as I am concerned, children should not be left fortunes for the following reasons. First of all, children may be extravagant with the money that is left to them. Secondly, children were too small to have a right value of money. Finally, children can ...
To sum up, these dramatic developments have reshaped our ability to treat disorders and maintain the development of scientific researches in century. The technology is continually evolving and the future of laser is very bright.
Bibliography:
Lasik Eye Surgery (The Medical Management Services Group) (December, 12 1999)
http://www.seewithlasik.com
Nafiye Güneç KIYAK Professor, Head of Physics Department Faculty of Arts and Science Iþýk University (April 14, 2002)
Ph D. Sezgin Sun (American Society of Laser Surgeries) (October, 27 2001)
