title: A dual optic accommodating foldable intraocular lens.
abstract: OBJECTIVE
  To design an accommodating intraocular lens with extended accommodative range that can be adapted to current standard phacoemulsification and endocapsular implantation technique.
  
  
  METHODS
  Ray tracing analysis and lens design; cadaver eye implantation.
  
  
  RESULTS
  Ray tracing analysis indicated that axial movement of an exaggerated converging anterior optic linked by spring loaded haptics to a compensatory static diverging posterior optic produced greater change in conjugation power of the eye compared to axial movement of a single optic lens. A dual optic one piece foldable silicone lens was constructed and implanted via a 4 mm corneal incision into the capsular bag of two cadaver eyes.
  
  
  CONCLUSIONS
  A dual optic intraocular lens design can increase the optical effect of a given displacement and suggests improvements for accommodating intraocular lenses.
authors.affiliation: Department of Ophthalmology, University of California San Francisco, San Francisco, CA 94143, USA. smcleod@itsa.ucsf.edu
authors.forename: S D
authors.initials: SD
authors.lastname: McLeod
authors.forename: V
authors.initials: V
authors.lastname: Portney
authors.forename: A
authors.initials: A
authors.lastname: Ting
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000295:instrumentation; D007910:Lenses, Intraocular / Q000592:standards*; D055095:Optics and Photonics; D018918:Phacoemulsification / Q000295:instrumentation; D011474:Prosthesis Design