Question

LASER IN DERMATOLOGY write effect,application,advantage and disadvantages of laser in dermatology and Referances

Answer 1

The first lasers used to treat skin conditions occurred over 40 years ago. Argon and carbon dioxide lasers were commonly used.

PROPERTIES OF LASERS

Lasers are sources of high intensity light with the following properties-

Monochromatic- The radiation of a single wavelength

Coherent- light beam waves are in phase

Collimated- the light beams travel in parallel

ADVANTAGES OF LASERS

(1) Hair Removal - Lasers can be used to remove excessive and cosmetically disabling hair due to hypertrichosis or hirsutism. Laser treatments remove dark hair quickly and it may take 3 to 6 months before regrowth is evident.

(2) Facial wrinkles, scars, and sun-damaged skin - Facial laser resurfacing uses high energy, pulsed and scanned lasers.

Pulsed CO₂ and erbium:YAG lasers have been successful in removing facial wrinkles, acne scars and sun damaged skin

(3) Viral wrats - Lasers are sometimes used to remove viral wrats by vaporisation(CO₂ laser) or destruction of the dermal blood vessels(PDL).

DISADVANTAGES OF LASERS

Laser treatments are burns. The following may be the adverse effect :

(1) Temporary pain,redness, bruising,blistering, and crusting

(2) Infection including reactivation of herpes simplex.

(3) Pigment changes which may be permanent

(4) Scarring