May 2006
Volume 47, Issue 13
ARVO Annual Meeting Abstract  |   May 2006
Sizing Guidelines for Performing Lamellar Keratoplasty With the IntraLase Femtosecond Laser
Author Affiliations & Notes
  • M.P. Ehrenhaus
    Ophthalmology, SUNY Downstate Medical Center, West, NY
  • E. Aliprandis
    Stahl Eye Center, Garden City, NY
  • D.R. Lazzaro
    Ophthalmology, SUNY Downstate Medical Center, West, NY
  • Footnotes
    Commercial Relationships  M.P. Ehrenhaus, None; E. Aliprandis, None; D.R. Lazzaro, None.
  • Footnotes
    Support  San Diego Eye Bank; IntraLase
Investigative Ophthalmology & Visual Science May 2006, Vol.47, 3594. doi:
  • Views
  • Share
  • Tools
    • Alerts
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      M.P. Ehrenhaus, E. Aliprandis, D.R. Lazzaro; Sizing Guidelines for Performing Lamellar Keratoplasty With the IntraLase Femtosecond Laser . Invest. Ophthalmol. Vis. Sci. 2006;47(13):3594.

      Download citation file:

      © ARVO (1962-2015); The Authors (2016-present)

  • Supplements

Purpose: : To determine the correct parameters for sizing a deep anterior lamellar keratoplasty with the femtosecond laser

Methods: : The femtosecond laser was programmed to a depth of 400 microns and then using either whole globes or cornea–scleral tissue with a disposable artificial anterior chamber, different size lenticules were programmed, cut, excised and measured.

Results: : Whole globes cut with the IntraLase were consistently 0.1mm smaller than programmed. Lamellar lenticules cut on the anterior chamber were consistently smaller than the programmed size by either 0.3 or 0.5 mm. The disparities were dependant on the programmed size, with 0.3 mm for sizes between 7.75 and 8.5, and 0.5mm for sizes between 8.5 and 9.5mm.

Conclusions: : The IntraLase Femtosecond Laser is a very accurate and helpful tool when performing lamellar keratoplasty. It not only adds precision, but it also decreases operative time as well as possibly even post–operative astigmatism. This study offers guidelines for correctly sizing the host and graft interfaces when performing deep anterior lamellar surgery.

Keywords: cornea: clinical science • clinical (human) or epidemiologic studies: systems/equipment/techniques • refractive surgery: other technologies 

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.