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Therapy monitoring of laser cyclophotocoagulation

  • Uwe Oberheide
  • , Christoph Lee
  • , Ronald Krebs
  • , Herbert Welling
  • , Wolfgang Ertmer
  • , Holger Lubatschowski

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Abstract

Laser induced ultrasound provides a powerful tool for solving a major problem of laser cyclophotocoagulation, which is caused by difficulties in localization and determination of optical properties. Furthermore it adds the possibility of an online control mechanism for the process of coagulation of the ciliary body. We have developed a transducer system which is based on a fibre with 600 μm core diameter surrounded by a ring shaped piezoelectric PVDF detector. With this detector it is possible to localize the lateral position of the ciliary body on enucleated pigs and rabbit eyes as well as its depth. Our findings correspond well with histological sections of the measured area. Additionally, the changes in the tissue's optical properties induced by coagulation with a diode laser have been detected in real time.

Original languageEnglish
Title of host publicationOphthalmic Technologies XII
PublisherSPIE
Pages48-53
Number of pages6
DOIs
Publication statusPublished - 13 Jun 2002
EventInternational Symposium on Biomedical Optics - San Jose, CA, United States
Duration: 19 Jan 200225 Jan 2002

Publication series

NameProceedings of SPIE-The International Society for Optical Engineering
Volume4611
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Biomedical Optics
Country/TerritoryUnited States
CitySan Jose, CA
Period19 Jan 200225 Jan 2002

Keywords

  • Ciliary body
  • Glaucoma
  • Laser cyclophotocoagulation
  • Online control
  • Optoacoustic tomography

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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