title: Digital ultraviolet reflectance photography can be used to quantify improvements in photodamage.
abstract: OBJECTIVE
  Increasing attention has focused on the treatment and reversal of ultraviolet- induced photodamage. This study was designed to determine whether ultraviolet reflectance photography could quantify the clinical effects of erbium:YAG laser resurfacing on photoaged skin.
  
  
  METHODS
  Twenty patients (ages 46-67) with moderate to severe photodamage underwent dual-mode variable pulsed erbium:YAG laser facial resurfacing. Pretreatment and post-treatment evaluations at 3 and 6 months were performed clinically and photographically with white and ultraviolet reflectance photography.
  
  
  RESULTS
  Image conversion of the ultraviolet reflectance imaging data demonstrated an average of 36% and 42% reduction in photodamage at 3 and 6 months, respectively. This correlated well with the wrinkle reduction and correction of dyspigmentation observed in all patients following laser resurfacing. Histologic examination confirmed a thicker, more orderly epidermis and dermal collagen remodeling after treatment.
  
  
  CONCLUSIONS
  Reduction in photodamage using the dual-mode variable pulsed erbium:YAG laser can be quantitatively measured with ultraviolet reflectance photography using digital imaging. This model should prove useful in developing treatment regimens for photodamage.
authors.affiliation: Plastic Surgery Associates of Northern Virginia 22102, USA. bfreedman58@aol.com
authors.forename: B M
authors.initials: BM
authors.lastname: Freedman
authors.forename: R V
authors.initials: RV
authors.lastname: Earley
authors.forename: T P
authors.initials: TP
authors.lastname: Balakrishnan