title: The construction of a model eye for investigation of laser-tissue interactions in scanning laser ophthalmoscopy.
abstract: OBJECTIVE
  To develop a model eye to study laser-tissue interactions during retinal imaging with scanning ophthalmoscopy.
  
  
  METHODS
  A model eye was designed to match the optical properties of the human eye based on the Bennett and Rabbetts schematic eye.
  
  
  RESULTS
  Alterations in axial length resulted in changes in refractive error similar to those in the human eye (3.70 D for 1 mm in axial length). Perfusion-fixed retinal tissue could be successfully imaged using the Heidelberg Retina Tomograph and Optical Coherence Tomograph to provide images that are similar in quality to those obtained.
  
  
  CONCLUSIONS
  The model eye should be a valuable tool for investigating laser-tissue interactions during scanning laser ophthalmoscopy and the derivation of digital retinal and tomographic images. This model should also enable a determination of the accuracy with which digital imaging techniques, such as the optical coherence tomograph and Heidelberg Retina Tomograph, measure retinal structure.
authors.affiliation: Department of Optometry & Vision Sciences, Cardiff University, United Kingdom.
authors.forename: Frank
authors.initials: F
authors.lastname: Rakebrandt
authors.forename: Rachel V
authors.initials: RV
authors.lastname: North
authors.forename: Jonathan T
authors.initials: JT
authors.lastname: Erichsen
authors.forename: Neville
authors.initials: N
authors.lastname: Drasdo
authors.forename: Colin
authors.initials: C
authors.lastname: Fowler
authors.forename: Alan
authors.initials: A
authors.lastname: Cowey
authors.forename: James E
authors.initials: JE
authors.lastname: Morgan
mesh_terms: D000818:Animals; D005240:Feasibility Studies; D006801:Humans; D007834:Lasers; D008252:Macaca fascicularis; D008954:Models, Biological; D009799:Ocular Physiological Phenomena; D009887:Ophthalmoscopy / Q000379:methods*; D012160:Retina / Q000033:anatomy & histology*; D014054:Tomography