September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Impact of optical coherence tomography (OCT) on decision to continue treatment for neovascuar age-related macular degeneration
Author Affiliations & Notes
  • Cornelia Volz
    University Eye Clinic, University of Regensburg, Parsberg, Germany
  • Felix Grassmann
    Institute of Human Genetics, University of Regensburg, Regensburg, Germany
  • Roman Greslechner
    University Eye Clinic, University of Regensburg, Parsberg, Germany
  • David A. Maerker
    University Eye Clinic, University of Regensburg, Parsberg, Germany
  • Patrick Peters
    University Eye Clinic, University of Regensburg, Parsberg, Germany
  • Horst Helbig
    University Eye Clinic, University of Regensburg, Parsberg, Germany
  • Maria-Andreea Gamulescu
    University Eye Clinic, University of Regensburg, Parsberg, Germany
  • Footnotes
    Commercial Relationships   Cornelia Volz, None; Felix Grassmann, None; Roman Greslechner, None; David Maerker, None; Patrick Peters, None; Horst Helbig, None; Maria-Andreea Gamulescu, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 3707. doi:
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      Cornelia Volz, Felix Grassmann, Roman Greslechner, David A. Maerker, Patrick Peters, Horst Helbig, Maria-Andreea Gamulescu; Impact of optical coherence tomography (OCT) on decision to continue treatment for neovascuar age-related macular degeneration. Invest. Ophthalmol. Vis. Sci. 2016;57(12):3707.

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

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Abstract

Purpose : Optical coherence tomography offers insights in the retinal structure and allows for noninvasive monitoring of retinal changes. Unfortunately many ophthalmologists do not have access to OCT technology and therefore depend on their clinical examination skills. We performed a prospective observational clinical study to investigate how clinical decision-making of specialists and residents is impacted by the use of OCT imaging when treating neovascular AMD.

Methods : 44 eyes from 38 patients were assesed for this study. All patients presented for re-evaluation 4-6 weeks after the loading dose of VEGF-Inhibitors (3 intravitreal injections every 4 weeks after diagnosis). The patients were examined twice: by a resident (with less than 5 years clinical experience in ophthalmology) and then by a specialist (with more than 5 years clinical experience in ophthalmology). The first evaluation was purely clinical, the second comprised OCT imaging. After each evaluation, each examiner independently filled out a form stating wheather further anti-VEGF treatment was recommended or not. The "true outcome" was defined as the decision of a specialist using clinical evaluation AND OCT. We calculated the true positive, true negative, false positive and false negative rate as deviation from this "true outcome". We used Fisher's exact test to evaluate differences between the different rates for different groups.

Results : Specialists and residents without or with the aid of OCT did not differ significantly in their accuracy to decide on the correct treatment option (P = 0.705 and P = 1 respectively). However, both groups benefited from using the OCT to support their recommendations (P = 0.001237 and P = 0.000173 for specialists and residents respectively). The gain of accuracy was similar for both groups (P = 1 for difference).

Conclusions : Both specialist and residents benefit from using OCT imaging to substantiate their recommendation on continuing or pausing treatment for neovascular AMD after the loading dose.

This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.

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