title: Erbium:yttrium aluminum garnet laser versus Q-switched neodymium:yttrium aluminum garnet laser for the treatment of xanthelasma palpebrarum.
abstract: BACKGROUND
  Several lasers have been used for the treatment of xanthelasma palpebrarum (XP), such as Q-switched neodymium:yttrium aluminum garnet (QSNd:YAG) and erbium:yttrium aluminum garnet (Er:YAG) laser. Up to now, a comparative study among these laser options in the treatment of XP has not been reported.
  
  
  OBJECTIVE
  The aim of this study was to compare the clinical efficacy and response rates of QSNd:YAG and Er:YAG in the treatment of XP.
  
  
  METHODS
  Sixty patients with a total of 102 XP lesions were randomly and equally divided into two groups. The first group was treated with QSNd:YAG at a fluence of 10 joule/cm2, 10 Hz and 2 mm spot size, and the second group was treated with Er:YAG at 200-300 millijoule, 4 Hz and 2 mm spot size.
  
  
  RESULTS
  In the Er:YAG group, the percentage of patients who required 3 or 4 sessions and wound healing time were higher compared to those of the QSNd:YAG group. Furthermore, the percentage of patients who had an improvement score of 4 was higher in the Er:YAG than that in the QSNd:YAG group.
  
  
  CONCLUSIONS
  Er:YAG is an efficient, successful and minimally invasive method without long-lasting adverse effects.
authors.affiliation: a Department of Dermatology, School of Medicine , Istanbul Medipol University , Istanbul , Turkey.
authors.forename: Ali
authors.initials: A
authors.lastname: Balevi
authors.affiliation: a Department of Dermatology, School of Medicine , Istanbul Medipol University , Istanbul , Turkey.
authors.forename: Pelin
authors.initials: P
authors.lastname: Ustuner
authors.affiliation: a Department of Dermatology, School of Medicine , Istanbul Medipol University , Istanbul , Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Ozdemir
mesh_terms: D000328:Adult; D000368:Aged; D000535:Aluminum; D003357:Cosmetic Techniques / Q000009:adverse effects / Q000295:instrumentation*; D004871:Erbium; D005141:Eyelid Diseases / Q000601:surgery*; D005260:Female; D006801:Humans; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009354:Neodymium; D012008:Recurrence; D014945:Wound Healing; D014973:Xanthomatosis / Q000601:surgery*; D015019:Yttrium
chemical_list: C503779:yttrium-aluminum-garnet; D009354:Neodymium; D015019:Yttrium; D004871:Erbium; D000535:Aluminum
keywords: Lasers and light sources; surgery