June 2015
Volume 56, Issue 7
Free
ARVO Annual Meeting Abstract  |   June 2015
Utility of the intraoperative OCT during posterior segment surgery
Author Affiliations & Notes
  • Michele Coppola
    Ophthalmology, Azienda Ospedaliera di Desio e Vimercate (MB), Milano, Italy
  • Federico Solignani
    Ophthalmology, Azienda Ospedaliera di Desio e Vimercate (MB), Milano, Italy
  • Footnotes
    Commercial Relationships Michele Coppola, None; Federico Solignani, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2015, Vol.56, 4090. doi:
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      Michele Coppola, Federico Solignani; Utility of the intraoperative OCT during posterior segment surgery . Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):4090.

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

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Abstract
 
Purpose
 

Intraoperative OCT is a new surgical tool helping surgeons, improving intraoperative safety and allowing a real-time feedback from all ocular structures: epiretinal membranes, internal limiting membrane, outer retinal layers.<br /> Our purpose is showing, directly through videos, the easy use of iOCT and its add-on, like checking the closure of macular holes during surgery ( high myopic macular hole closure by external indentation), the complete removal of ERM and ILM even without using dyes twice.

 
Methods
 

ZEISS RESCAN Lumera 700 (Carl Zeiss Meditec, Dublin, Calif., USA) - with integrated intra-operative OCT technology and Callisto eye software (Carl Zeiss Meditec, Dublin, Calif., USA) can be used during all surgical procedures performed on anterior segment, glaucoma, and retina. The wavelength of spectral domain iOCT is 840 nm, the scanning speed is 27000 A-scans per second with an A-scan depth of 2.0 mm, an axial resolution of 5.5 μm in tissue. Scan length is adjustable from 3 to 16 mm, and scan rotation is adjustable over 360°. Image acquisition is possible by recording movies or taking pictures.

 
Results
 

The new machinery, iOCT, improves the safety and the surgeon' self confidence during every surgical procedure.<br /> Starting new era that opens other surgical scenarios: surgeons can work with anatomical guide. iOCT shows anatomical reperies of the eye directly in surgical field overlaying the main image. It is controlled by the foot switch, allowing the surgeon to move indipendently from other members of the surgical staff thus enhancing the theatre safety.

 
Conclusions
 

In conclusion, the importance of our video is related to the use of a new technique that allows the use of OCT during surgery and in selected cases of diagnosis as well. Further studies are certainly necessary for a better comprehension of uses and limitations of iOCT, but our videos for the first time demonstrate possible new applications.  

 
iOCT showing epiretinal membrane interrruption and its retraction after sharp needle scraping.
 
iOCT showing epiretinal membrane interrruption and its retraction after sharp needle scraping.

 
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