RT Book, Section
A1 Ibrahim, Omer
A1 Dover, Jeffrey S.
A2 Kang, Sewon
A2 Amagai, Masayuki
A2 Bruckner, Anna L.
A2 Enk, Alexander H.
A2 Margolis, David J.
A2 McMichael, Amy J.
A2 Orringer, Jeffrey S.
SR Print(0)
ID 1161347467
T1 Fundamentals of Laser and Light-Based Treatments
T2 Fitzpatrick's Dermatology, 9e
YR 2019
FD 2019
PB McGraw-Hill Education
PP New York, NY
SN 9780071837798
LK dermatology.mhmedical.com/content.aspx?aid=1161347467
RD 2024/04/23
AB AT-A-GLANCELasers  and  flashlamps  harness  the  power  of  light  to  precisely  treat  a  myriad  of  cutaneous  disorders  and  conditions.Laser  light  is  monochromatic,  coherent,  and  collimated;  whereas,  intense  pulsed  light  (IPL)  is  polychromatic,  broadband,  and  divergent.Upon  light’s  impact  with  skin,  several  tissue  interactions  occur  including  reflection,  transmission,  scattering,  and  absorption.Laser  parameters  such  as  fluence,  pulse  duration,  wavelength,  and  spot  size  can  be  adjusted  to  safely  deliver  energy  to  the  skin  to  achieve  desired  therapeutic  effects.In  general,  within  the  visible  spectrum  longer-wavelength  light  penetrates  more  deeply.Laser  and  light  delivered  though  a  larger  spot  size  penetrates  more  deeply  into  tissue  and  is  scattered  less  than  with  smaller  spot  sizes.Selective  photothermolysis  allows  lasers  and  light  sources  to  target  specific  chromophores  in  the  skin  to  achieve  certain  effects  while  minimizing  injury  to  surrounding  structures.Fractional  photothermolysis  creates  evenly  distributed  zones  of  microthermal  injury  in  skin  to  produce  columns  of  injury  in  the  epidermis  and  dermis,  leaving  intervening  columns  of  unaltered  skin,  thereby  decreasing  healing  time  and  minimizing  adverse  effects.Knowledge  of  the  potentially  hazardous  effects  of  lasers  and  flashlamps,  and  implementation  of  safety  measures,  are  essential  to  maintain  a  safe  environment  for  the  practitioner,  staff,  and  patient.