A brief consideration of Intense Pulsed Light (IPL) is warranted, as such devices have gained popularity because of their versatility. Intense Pulsed Light is not a laser but rather a high energy burst of noncoherent light in the range of 515-1200 nm. Like laser, IPL sources have been used in the treatment facial vascular lesions […]

The Nd:YAG is a popular laser that emits light at the far end of the infrared spectrum, 1064 nm. Like the others, it has been used to remove tattoos [24], hair epilation [25], skin Table 23.1 Examples of Commercially Available Lasers Laser (Example) Wavelength (nm) Ruby lasers (Epilaser®, EpiTouch®, RubyStar®) 694 Alexandrite laser (Apogee®,GentleLASE®*, EpiTouch […]

The alexandrite laser emits red light at a wavelength of 755 nm. Not surprisingly, the clinical uses of the alexandrite laser are similar, if not identical to the ruby laser [18-21]. 23.1.1.1 Diode The diode laser used in dermatology emits infrared light at 810 nm. The lasing medium is a semiconductor comprised of gallium-aluminum-arsenide. The […]

The ruby laser was the first of such devices to be used in dermatology [6]. The ruby laser emits red light at a wavelength of 694 nm. The depth of penetration into the skin is believed to be approximately 1 mm using clinically relevant doses [12]. This laser has been used to treat congenital melanocytic […]

Laser (Light Amplification by the Stimulated Emission of Radiation) is based on Einstein’s quantum theory and the concept of stimulated emission of light. In brief, when an atom returns to ground state following excitation, it emits a photon of light at a specific wavelength. If the photon collides with a similarly excited atom, the atom […]

J. Frank Nash1, Melea Ward1, and Gurpreet S. Ahluwalia2 1 The Procter and Background The use of light energy as a treatment modality in dermatology is as old as civilization itself. The therapeutic properties of sunlight, alone or in combination with exogenously applied compounds have been used in the treatment of skin conditions for centuries. […]

The regulations allow for variances and exemptions from all or part of the standard, and from the reporting and recordkeeping requirements. A variance 1 37 is permission to vary from one or more requirements of the standard. Upon application by a manufacturer, the Director of CDRH may grant a variance for a product if it […]

Medical laser products are products that are medical devices manufactured, designed, intended, or promoted for in vivo irradiation of the human body for diagnosis, surgery, therapy, cosmetic interventions, or for determining the relative position of the human body. Class Ilia, Illb, and IV medical laser products must contain a means for measuring the delivered exposure […]

Because OTC devices are intended for the mass consumer market, additional studies are required to ensure its safety and effectiveness in the hands of consumer not having the benefits of physician supervision or treatment. Requirements for receiving marketing clear­ance include: a. Label comprehension study Adequate directions enable a layperson to use an OTC device safely […]