April 2010
Volume 51, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2010
Changes in CDE With Laser Lens Fragmentation Compared With Standard Phacoemulsification Cataract Surgery
Author Affiliations & Notes
  • R. W. Frey
    LensAR Inc, Winter Park, Florida
  • K. Edwards
    LensAR Inc, Winter Park, Florida
  • R. Naranjo Tackman
    APEC Hospital Luis Sanchez Bulnes, Mexico City, Mexico
  • J. Villar Kuri
    APEC Hospital Luis Sanchez Bulnes, Mexico City, Mexico
  • N. Quezada
    LensAR Inc, Winter Park, Florida
  • T. Bunch
    LensAR Inc, Winter Park, Florida
  • S. Bott
    LensAR Inc, Winter Park, Florida
  • Footnotes
    Commercial Relationships  R.W. Frey, LensAR Inc, I; LensAR Inc, E; LensAR Inc, P; K. Edwards, LensAR Inc, E; R. Naranjo Tackman, LensAR Inc, C; J. Villar Kuri, LensAR Inc, C; N. Quezada, LensAR Inc, E; T. Bunch, LensAR Inc, E; S. Bott, LensAR Inc, E.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science April 2010, Vol.51, 5418. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      R. W. Frey, K. Edwards, R. Naranjo Tackman, J. Villar Kuri, N. Quezada, T. Bunch, S. Bott; Changes in CDE With Laser Lens Fragmentation Compared With Standard Phacoemulsification Cataract Surgery. Invest. Ophthalmol. Vis. Sci. 2010;51(13):5418.

      Download citation file:


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

      ×
  • Supplements
Abstract

Purpose: : To determine if laser lens fragmentation reduces the need for phacoemulsification energy (as measured by CDE) in cataract extraction when compared to conventional phacoemulsification surgery.

Methods: : Patients electing to undergo routine cataract surgery were recruited onto this study after explanation of the study aims and signing the Ethics Committee approved informed consent. The eye with the most visual compromise was operated on first using the laser procedure. Laser capsulotomy and lens fragmentation was followed by cataract surgery using the minimum phaco energy required to aspirate the lens. The fellow eye was subsequently operated on using standard phacoemulsification surgery. The amount of energy utilized in each surgery was recorded using the displayed Cumulative Dispersed Energy (CDE) in the Alcon Infiniti phacoemulsification device. The results were compared between the laser and conventionally treated groups.

Results: : A total of 38 laser treated eyes and 18 conventionally treated eyes were included in the analysis. For LOCSIII Grade 1 cataract, mean CDE was reduced by 26.4% while for Grade 2 the reduction was 59.1%. The biggest reduction in the maximum energy required to remove the lens was 66.4% for Grade 2 cataract (14.22 Laser vs 42.35 Phaco only) and the biggest reduction in the minimum energy required to remove the lens was 61.6% (0.94 laser vs 2.45 phaco only) for Grade 3 cataract.

Conclusions: : Early data from clinical trials suggest that laser lens fragmentation can reduce the amount of ultrasound energy required to remove the cataractous lens. A larger sample of higher grade cataracts is required to determine the optimum cutting algorithms, to refine surgical technique used in conjunction with the laser fragmentation.

Clinical Trial: : www.clinicaltrials.gov NCT01001117

Keywords: laser • cataract • small incision cataract surgery 
×
×

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.

×