April 2010
Volume 51, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2010
Image Quality of a Novel Navigated Retina Laser (NAVILAS®)
Author Affiliations & Notes
  • A. S. Neubauer
    Ophthalmology, Ludwig-Maximilians University, Muenchen, Germany
  • M. Kernt
    Ophthalmology, Ludwig-Maximilians University, Muenchen, Germany
  • C. Haritoglou
    Ophthalmology, Ludwig-Maximilians University, Muenchen, Germany
  • M. Ulbig
    Ophthalmology, Ludwig-Maximilians University, Muenchen, Germany
  • A. Kampik
    Ophthalmology, Ludwig-Maximilians University, Muenchen, Germany
  • I. Kozak
    Ophthalmology, University of California San Diego, La Jolla, California
  • S. F. Oster
    Ophthalmology, Wilmer Eye Institute, San Diego, California
  • K. Hartmann
    Ophthalmology, University of California San Diego, La Jolla, California
  • J. Kim
    Ophthalmology, University of California San Diego, La Jolla, California
  • W. R. Freeman
    Ophthalmology-Jacobs Ret Ctr 0946, Univ of California-San Diego, La Jolla, California
  • Footnotes
    Commercial Relationships  A.S. Neubauer, ODOS GmbH, C; M. Kernt, None; C. Haritoglou, None; M. Ulbig, None; A. Kampik, ODOS GmbH, C; I. Kozak, None; S.F. Oster, None; K. Hartmann, None; J. Kim, None; W.R. Freeman, ODOS, I; ODOS, C.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science April 2010, Vol.51, 1639. doi:
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    • Get Citation

      A. S. Neubauer, M. Kernt, C. Haritoglou, M. Ulbig, A. Kampik, I. Kozak, S. F. Oster, K. Hartmann, J. Kim, W. R. Freeman; Image Quality of a Novel Navigated Retina Laser (NAVILAS®). Invest. Ophthalmol. Vis. Sci. 2010;51(13):1639.

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

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Abstract

Purpose: : To investigate image quality of retina images obtained by a novel retina laser device built for navigated treatments (NAVILAS®).

Methods: : Fundus of 20 eyes of 20 patients was imaged digitally by NAVILAS® and by a standard digital fundus camera. Images were graded side-by-side independently by three graders masked to the image source. On visual analog scales (scale 0 worst to 10 best) a total of 7 distinct image characteristics were investigated: brightness, contrast, focus (sharpness), color, resolution and details, validity of clinical assessment and overall quality. The core image characteristics that influence visibility and detectability of the pathology were evaluated in order to determine if the NAVILAS images allow for precise and fast localization of pathologies and therefore fast layout of treatment plan.

Results: : For all of the 7 scales the NAVILAS® yielded good image results. Average results were graded consistently comparable or better (all p<0.001) than standard digital fundus photography for all patients: brightness (7.9 vs 7.0), contrast (7.9 vs 6.6), focus (7.7 vs 6.6), color (7.8 vs 6.9) and resolution and details (7.7 vs 6.2). Regarding the highly relevant summary image characteristics the NAVILAS® showed good results with an average evaluation of 7.6 vs 6.1 for validity of clinical assessment and 7.7 vs 6.4 for overall quality (p<0.001). All 3 graders yielded very consistent results to each other.

Conclusions: : NAVILAS® provides fundus images in at least similarly high quality as expert photography. Targeting of various pathologies such as microaneurysms has the technical potential to be performed at high accuracy and speed.

Keywords: imaging/image analysis: clinical • retina • laser 
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