Yag laser treatment of posterior capsule opacification on anterior chamber depth and refraction in pseudophakic eyes bharkbhum khambhiphant,1 chayata liumsirijarern,2 piyada saehout1 1department of ophthalmology, king chulalongkorn memorial hospital, thai red cross society, 2department of ophthalmology, faculty of medicine, chulalongkorn university, bangkok, thailand. The removal of benign, aesthetically important, pigmented lesions can be effectively treated with multiple modalities. Yag laser light is also effective for longterm hair removal. A highpowered semiconductor diode laser 805 nm has recently been developed for medical use. Color atlas of cosmetic dermatology 2nd edition pdf. In darkskinned individuals, epidermal melanin absorbs the laser light, causing blistering and reducing the injury to the targeted hair. Pearls and problems is different from other laser dermatology books. A clinical study was performed in which 72 patients with 194 nails affected by onychomycosis were treated with long pulse nd. The best choice of laser depends on what you are targeting for improvement. Construction of an automatized workstation with ultrashort laser pulses femtoseconds for the study of thermal and nonthermal processes in dielectrics, semiconductors and metals. The nd yag laser, the co2 laser were developed by kumar patel. Yag laser to produce a good quality, continuous beam at room temperature.
Yag laser is a crystal rod of yttrium aluminium garnet yag with the impurity neodymium nd. Lasers have gained considerable use in the field of dermatology for treatment of a variety of cutaneous lesions. Yag device has recently been developed that emits energy at a. The dopant, triply ionized neodymium, nd iii, typically replaces a small fraction 1% of the yttrium ions in the host crystal structure of the yttrium aluminum garnet yag, since the two ions are of similar size. Qswitched ndyag laser 1064 nm offers a new technology that helps treat scars and wrinkles at their root, deep in the skin. Yag laser resurfacing has faster recovery time and fewer side effects than carbon dioxide laser but is less effective for the deeper line and wrinkles. Enlarged pores treated with a combination of qswitched. Yag, ruby, dye and metal vapour lasers are discussed.
The use of laser therapy is vastly expanding and for this reason a medical book of this magnitude is necessary. Publications home of jama and the specialty journals of the. Oct 10, 2016 introduction to laser dermatology 2 1. Yag laser treatments could result in substantial reduction in scarring by stimulating collagen formation resulting in smoothing of the skin. Click download or read online button to get nd yag laser book now. Laser treatment was then performed over both sides of the face and nose with the dual mode 1064 nm nd. This book represents the most uptodate description of the state of the art in laser and light source technology. There are plenty of such books already written on that topic some by me.
Sp dynamis is a uniquely capable and fullfeatured system offering the power of the industrys highest performance er. Yag laser has undergone an enormous evolution in the years, being now widely used in both basic research and technological applications. Yag laser treatment of melanocytic nevi is comparable to other pigmentspecific laser treatments based on speed, convenience, excellent cosmesis and the ease of repetition, if required. E0 is the energy at which the absorption is the highest.
With this in mind, color atlas of cosmetic dermatology, second edition seeks to provide a succinct yet broad overview of cosmetic therapy. Resurfacing acne scars and extensive areas of skin damaged by photoageing have good results with the use of carbon dioxide laser. Lasers and light therapy includes an uptodate comprehensive look at lasers and light therapy not only in the field of cutaneous laser surgery, but in other medical specialties. The medlite c6 laser is the most common technique for removing tattoos. The clouding of the lens capsule after the cataract treatment can be remedied by means of a central gap. Yag laser covers a wide range of topics, from new systems diode pumping, short pulse generation and components a new semiorganic nonlinear crystal to applications in material processing. Pearls and problems is not meant to be just another book written about lasers in dermatology. Treatment of multicolored tattoos with the frequencydoubled qswitched nd. Yag pulsed laser spectron laser systems, sl 852 at 532 nm has a pulse duration ns, repetition rate 1. The dopant, triply ionized neodymium, ndiii, typically replaces a small fraction 1% of the yttrium ions in the host crystal structure of the yttrium aluminum garnet yag, since the two ions are of similar size. Beginning with an introduction to the technology of lasers and the setting up of a lasers practice, the following chapters discuss their use in different conditions including acne scars, leg veins, tattoo removal, treatment of lesions, pigmentary disorders, and much more.
The alexandrite is the safest and most effective laser for light skin. All ink colors can be removed, although green and yellow are more difficult to remove. The nd yag 1064nm laser is particularly effective for capillaries on the face. Lasers in dermatology generally as higher the wavelength, deeper the effect argon laser. Yag laser has a wavelength of 1064 nm and has the capability to reach deeper layers of skin tissue than other types of lasers. Yag is a deeper penetrating laser that is used to treat spider leg veins and deeper facial veins. After an initial chapter describing the latest understanding of laser physics and safety, subsequent chapters take up the laser treatment, respectively, of vascular lesions, pigmented lesions and tattoos, unwanted hair, ablative and nonablative resurfacing, and its use for. Clinical and practical applications of lasers are growing up in the different research and specialized centers. Asian skin differs from caucasian skin because of the higher amount of epidermal melanosomes. Dermatology books rish academy download free pdf books. In this overview, we are discussing the current applications of argon, co 2 and nd. Using laser energy that penetrates deeply without injuring the top layer of skin, the deep dermis is stimulated to produce natural collagen and. Introduction to laser dermatology 1 linkedin slideshare. Yag laser for endovenous laser ablation, lipolysis, and other.
Sep 06, 2011 laser technology is constantly evolving and progressing. There are four main lasers used for photoepilation the ruby laser at 694 nm, the alexandrite laser at 755 nm, the diode laser at 810 nm and the nd. Yag laser used was an american medical optics 100 qswitched laser, with power settings of up to 4. Introduction of lasers, types of laser systems and their operating principles, methods of generating extreme ultravioletvacuum ultraviolet euvvuv laser lights, properties of laser radiation, and modi. These lasers operate in both pulsed and continuous mode. Effectiveness of nd yag laser on light skin dark hair. Introduction to laser dermatology 2 linkedin slideshare.
Report on a series of 369 cases article pdf available in journal of korean medical science 245. It can also be used for other lesions containing blood vessels. Laser and skin surgery center of new york, new york, new york address correspondence and reprint requests to. Y 3 al 5 o 12 is a crystal that is used as a lasing medium for solidstate lasers. Yag is a crystal that is commonly used as a lasing medium for solidstate lasers. Yag laser synechiolysis was carried out in the right eye, keeping the automatic focus at zero depth and aiming at the attachment of ps instead of the intraocular lens iol. It is commonly used to treat vessels associated with sun damage and rosacea. This article hopes to strengthen general practionners and specialists knowledge of the different categories of available lasers. The laser tissue interactions of this wavelength have been compared with nd. Yag laser is 1015 times more absorbed by water in the skin than the energy from co 2 lasers. Introduction laser is a device that emits electromagnetic radiation. Yag laser and topical fluoride treatment for effective reduction of. Wavelengths utilized for lipolysis liquefy fat and induce collagen remodeling, which tightens skin. In a 40 year period lasers not only were diversified but have also become safer and miniaturized.
The neodymium yag laser in dermatology springerlink. Yag laser emits short, highintensity pulses of light at a specific wavelength that is absorbed by the pigment of the tattoo ink or darkened area. This paper deals with the detailed properties and applications of nd. Yag laser, principle, design, characteristics and applications. Laser assisted hair reduction though the longpulsed lasers are gold standards for the removal of terminal hair, qswitched laser has been tried with and without topical carbon suspension. Principles and surgical applications sciencedirect. Few years ago, laser was perceived by many in the field of dermatology as a machine searching for a disease. Yag laser light dualis sp, fotona, slovenia at a single clinical site. The applications of various lasers used in dermatology, including the carbon dioxide, argon, qswitch nd. The concept of selective photothermolysis has transformed our understanding of laser tissue interactions, and there has been an explosive interest in laser treatment for both skin diseases and aesthetic indications over the past decade or more. The main wavelength of the types used in medicine is 1064 nm 1. Generic trace showing the aoms signal switching to low loss and the resulting qswitched pulse with fast leading and slow trainling edge. Vanderbilt dermatology medlite c6 laser vanderbilt health. Laser dermatology by las award winning dermatologist.
Yag produces 2 wavelengths, one in the infrared range 1064 nm and the second beam of 532 nm wavelength which is useful for superficial skin lesions. The qlas is used to treat the anterior segment of the eye. Yag laser is a solid state laser with a crystal of yttrium aluminium garnet dotated with small amounts of neodymium as active laser medium. Yag laser generates laser light commonly in the nearinfrared region of the spectrum at 1064 nanometers nm. The concentrated pigment absorbs the light much more than the surrounding tissue. Each of the five chapters begins by highlighting key points and essential concepts, then focuses on the pearls and problems for each area based on the authors vast experience in the field of laser dermatology. We present our experience with the use of the carbon dioxide laser, flashlamp pulsedye laser and qswitch nd. Evaluation of the safety and efficacy of a novel 1440nm nd. Vanderbilt dermatology medlite c6 laser vanderbilt. Qswitched pulses produce a photomechanical impact on the tissue and also on hair shaft and hair follicle, causing reduction as well as delay in hair growth. Laser in dermatology by zeinab abdel azim md dermatology 2. Yag lasers, designed for the widest range of applications in aesthetics and dermatology. The light waves cause the pigment to break down, and eventually be absorbed by the body.
A threecenter trial evaluated the effectiveness of the frequencydoubled qswitched neodymium nd. Yag laser energy has the highest absorption rate in water. Discovered almost fifty years ago at bell labs 1964, the nd. Nd yag laser download ebook pdf, epub, tuebl, mobi. Yag laser has been proven to stimulate new collagen synthesis. Lasers and related technologies in dermatology 1st edition pdf.
This book is a comprehensive guide to the use of lasers in the management of dermatological disorders and in cosmetic surgery. Geusic et al first explained the laser operation of nd. Yag laser posterior synechiolysis expands the spectrum. Lasers and related technologies in dermatology 1st edition pdf the essential, atoz guide to skin rejuvenation using lasers and related technology this comprehensive, yet streamlined book takes you step by step through all current technologies for skin rejuvenation of the face and other areas of the body. The continual development and dissemination of laser technology throughout the world has been nothing short of miraculous. Lasers in military laser range finders are used to determine the distance to an object.
Textbook of laser and light dermatology in the asian skin. Clinical applications of qswitched ndyag laser goel a. Laser lipolysis is a less invasive approach to neck rejuvenation than open surgery or liposuction. Deutsch, phd wellman laboratories, department of dermatology, massachusetts general hospital, boston, massachusetts 021 14 the thermal damage caused by 2. Rish academy download dermatology books with pdfs, flashcards, mnemonics and thousands of other study materials on free best medical website. Selective removal of the pigment by lasers is becoming increasingly popular. Yag laser energy is uniquely suited for optimum performance of phast because. Laser has been used in dermatology for over four decades. When the laser goes into the skin, it causes the tattoo ink to break into pieces. This laser targets blood in the vessels causing coagulation and immediate vessel closure. Effect of pulse duration and tissue type on thermal damage joseph t. The super short, 50 microsecond square pulse technology available only.
The sp dynamis also includes an additional surgical qcw nd. All other books dealing with this vast arena either focus on a the skin entities that can be treated with lasers. Its main advantage is its thermal stability which allows an nd. This site is like a library, use search box in the widget to get ebook that you want. Laser application in dermatology and cosmetology field is considered new. A gallium arsenide diode laser can be used to setup an invisible fence to protect an area. Yag laser resurfacing is used to remove superficial and moderately deep lines and wrinkles on the face, hands, neck, or chest. Yag laser skin treatment plano tx, plano laser treatment nd. Due to the rather costly equipment, its use is restricted mainly to dermatologic clinics and to some large dermatologie private practices.
Yag laser has been used in dermatology for about fifteen years now. Over the last fifteen years, this field has been marked by constant technological innovation. Oct 10, 2016 introduction to laser dermatology 1 1. Ipl is not effective for laser hair removal for light or dark skin. Kim, md, laser and skin surgery center of new york, new york, ny or email.
Yag crystal is the most widely used solidstate laser material adopted by industrial, medical, military and scientific customers. Yag laser is a fourlevel laser system, which means that the four energy levels are involved in laser action. If you are targeting the red and brown of photodamage, then the best laser is a vbeam or ipl. Both modes were delivered through the same 7 mm collimated handpiece at a pulse. Yag laser may be used for hair removal in any location including underarms, bikini line, face, neck, back, chest and legs. Yag laser for endovenous laser ablation, lipolysis, and other surgical procedures. The decision as to when not to treat a patient is perhaps the most important in this field. The ring laser gyroscope is used for sensing and measuring very small angle of rotation of the moving objects. These lasers cause very little discomfort and very little down time. It is therefore feasible that deliberate submillisecond 1064 nm nd. We are also exploring the future prospects of laser research in. Yag vascular lasers are wonderful machines that love the color red and selectively make it their mission to make that color disappear. Dsa dermatology located at 4010 west park boulevard, plano, tx 75093.
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