title: The correlation between various types of intraocular lens and laser wavelength.
abstract: OBJECTIVE
  To analyze effects of the composition and the color of intraocular lenses (IOLs) on laser wavelength.
  
  
  METHODS
  A case control study.
  
  
  METHODS
  Laser light rays at wavelengths ranging from 0.1 to 0.5 W were directed at a polymethymethacrylate ocular model fitted consecutively with three types of IOLs at various refractive powers. A laser detector was placed on the model beneath the lenses. The laser beam was passed through the IOLs and the output measured by a sensor. Attenuation rate was calculated.
  
  
  RESULTS
  The colored IOL caused significantly more attenuation than did the noncolored IOLs (p <.01). A 30-diopter colored IOL showed an attenuation rate of up to 15% at a wavelength of 488 + 514 nm.
  
  
  CONCLUSIONS
  Consideration of the wavelength and the output of a laser for a particular IOL is required when laser photocoagulation of the retina is performed in patients with pseudophakia.
authors.affiliation: Department of Ophthalmology, Tokai University School of Medicine, Isehara, Japan. k-kawai@is.icc.u-tokai.ac.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Kawai
authors.forename: Kotaro
authors.initials: K
authors.lastname: Sakanishi
mesh_terms: D003116:Color; D017075:Laser Coagulation / Q000379:methods*; D007910:Lenses, Intraocular; D008953:Models, Anatomic; D019904:Polymethyl Methacrylate; D019591:Pseudophakia / Q000150:complications; D012164:Retinal Diseases / Q000601:surgery
chemical_list: D019904:Polymethyl Methacrylate