title: Contact versus noncontact diode laser transscleral cyclophotocoagulation in cadaver eyes.
abstract: OBJECTIVE
  The optimal placement and laser energy levels of a new contact probe with a variable focus used for transscleral diode cyclophotocoagulation were compared with the diode laser noncontact technique.
  
  
  METHODS
  Fresh cadaver eyes were evaluated by a modified posterior Miyake view using videotape, light microscopy, and scanning electron microscopy.
  
  
  RESULTS
  The noncontact diode technique at maximum energy (1.2 J) and contact diode applications at similar energy levels failed to produce obvious gross tissue ciliary body change and mild alterations by histology. Consistent gross, histologic, and scanning electron microscopic damage was noted at 3.0 J or more with the contact probe placed at the surgical limbus and defocused 0.5 to 1.5 mm posteriorly.
  
  
  CONCLUSIONS
  This study indicates that the Multilase contact diode laser causes transscleral ciliary body destruction in a cadaver eye model and may have potential clinical usefulness.
authors.affiliation: Department of Ophthalmology Medical University of South Carolina, Charleston, USA.
authors.forename: G A
authors.initials: GA
authors.lastname: Stroman
authors.forename: W C
authors.initials: WC
authors.lastname: Stewart
authors.forename: S
authors.initials: S
authors.lastname: Hamzavi
authors.forename: T P
authors.initials: TP
authors.lastname: Powers
authors.forename: W D
authors.initials: WD
authors.lastname: Blessing
mesh_terms: D002102:Cadaver; D002924:Ciliary Body / Q000473:pathology / Q000601:surgery*; D006801:Humans; D053685:Laser Therapy / Q000295:instrumentation / Q000379:methods*; D008028:Light Coagulation / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D011184:Postoperative Period; D012590:Sclera