September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Comparison of choroidal thickness measured using swept-source and spectral domain OCT devices in myopic eyes.
Author Affiliations & Notes
  • thomas Dassonval
    86, chu poitiers, Mignaloux , France
  • Nicolas Leveziel
    86, chu poitiers, Mignaloux , France
  • Footnotes
    Commercial Relationships   thomas Dassonval, None; Nicolas Leveziel, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 4645. doi:
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      thomas Dassonval, Nicolas Leveziel; Comparison of choroidal thickness measured using swept-source and spectral domain OCT devices in myopic eyes.
      . Invest. Ophthalmol. Vis. Sci. 2016;57(12):4645.

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

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Abstract

Purpose : Choroidal thickness is a prognosis factor in high myopia, because a thinner choroidal thickness has been associated to macular complication as lacquer cracks and chorioretinal atrophy. The reliability of choroidal thickness measurement using OCT device is consequently important.
To compare choroïdal thickness in myopic eyes using swept-source optical coherence tomography (SS-OCT) and spectral-domain (SD) OCT devices.

Methods : A cross-sectional observational study of 29 eyes of 15 patients (median age is 58) examined with optical coherence tomography(Topcon DRI OCT-1 (Topcon, Tokyo, Japan), Spectralis OCT (Heidelberg Engineering, Heidelberg, Germany) ) was used to determine the retro macular choroïdal thickness. In each eye, 6mmX6mm ( SS- OCT ) scans and 2 scans horizontal and vertical ( SD-OCT ) centered on the fovea we performed. We calculated choroidal thickness manually for the two OCT scans, using a built-in caliper.

Results : The retro-foveal choroidal thickness differed significantly among the two OCT devices (Spectralis : 107,4 µm ; DRI OCT-1 : 123,9 µm ; p< 0,0001) with mean differences ranging from 1 µm to 37 µm.

Conclusions : Retinal thickness measurements obtained from DRI OCT-1 and SD-OCT are different and should be accounted for when comparing results of OCT scans from different devices.

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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