March 2012
Volume 53, Issue 14
Free
ARVO Annual Meeting Abstract  |   March 2012
A New Disegned Wide-field Light Pipe For Vitreo-retinal Surgery
Author Affiliations & Notes
  • Paolo Chelazzi
    Clinica Oculistica, Istituto Clinico Citta' Studi, Milano, Italy
  • Michele Coppola
    UO Oculistica, Azienda Ospedaliera di Desio e Vimercate, Desio (MB), Italy
  • Footnotes
    Commercial Relationships  Paolo Chelazzi, None; Michele Coppola, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science March 2012, Vol.53, 3764. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Paolo Chelazzi, Michele Coppola; A New Disegned Wide-field Light Pipe For Vitreo-retinal Surgery. Invest. Ophthalmol. Vis. Sci. 2012;53(14):3764.

      Download citation file:


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

      ×
  • Supplements
Abstract

Purpose: : To assess the usefulness of a new wide-angle light pipe to improve illumination and visualization during small gauge vitrectomy and to potential reduce retinal phototoxicity hazards.

Methods: : Many xenon light devices have been recently developed in order to generate much brighter illumination during small gauge vitrectomy and to reduce toxic light wavelenghts. Furthermore several types of light probes for wide-angle endoillumination are currently available. A new light pipe for bright, clear and panoramic visualization was evaluated. Beveled sheath on the tapered tip has been designed to improve safety reducing hazards of toxicity. The power and distribution of the light and filter combinations for vitreous surgery were measured. Additionally, the effect of various measures that reduce the risk of phototoxicity was evaluated.

Results: : The new pipe allows a 115° field of illumination compared with the standard focal light pipe which illuminates a 50° field. Optimized fiber tip angle distributes light uniformly eliminating shadows and "hot spots". Moreover the beveled sheath on the tips minimizes glare. The shape of the pipe helps reducing need to move probe during surgery and reduces thermal output. With an additional amber colored filter, xenon light levels are more safety and the allowable exposure time can be increased.

Conclusions: : Improve visualization and reduce phototoxicity during vitreoretinal surgery is a main goal. A new wide-field intraocular light has been disegned to provide a better view of the entire retina than a standard light pipe, preventing shadows and minimizing glare for surgeon. The new device provides safety margins for endoillumination during vitrectomy.

Keywords: vitreoretinal surgery • retina • clinical (human) or epidemiologic studies: systems/equipment/techniques 
×
×

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.

×