What is the definition or description of: fractional laser?

Fractional laser: Fractional lasers are devices that treat fractions of the skin rather than full coverage. The idea is to obtain faster healing . This can be likened to aerating the lawn rather than mowing the entire surface.

Timing: Fractional resurfacing lasers have the benefit of maintaining the energy while shortening the time of pulses, so that the energy delivered has a precise, limited "dwell" time in the tissues treated. This biomedical engineering innovation still ensures collagen stimulation but decreases the recovery time and lessens the amount of erythema (redness) as there is less bulk heating of the tissue.

"polka dots": Instead of wiping the entire surface of the skin (100%), the fractional laser method only treats a portion of the skin - literally, a "fraction". This is usually done by applying the laser using a polka dot style pattern. There are a series of laser dots, with untreated, normal skin in-between. Since less skin is treated, the recovery is typically easier and quicker.

Treats Fractions: A fractional laser only treats a small fraction of the skin by removing micro columns of skin and leaving intact skin around them. The intact skin allows for faster healing. Treats acne and scars, age spots, wrinkles. Expect social downtime of at least a week depending on which laser is used. Great results by 12 weeks. http://www.omahacosmeticsurgery.com/pearl-fractional-laser-treatment/