Abstract
Background/aims: Choroidal thickness measurements are reported to differ between spectral-domain optical coherence tomography (SD-OCT) and swept-source OCT (SS-OCT). The aim of this study was to assess the comparability of choroidal thickness measurements using SS-OCT and SD-OCT devices among normal participants. Materials and methods: This was a prospective study of 31 (62 eyes) normal participants. Choroidal imaging was performed sequentially with the Spectralis OCT (SD-OCT) and the deep range imaging OCT (DRI OCT-1) (SS-OCT) using standardized imaging protocols. The subfoveal choroidal thickness (SFChT) was measured manually by two masked retinal specialists. Paired t-tests and intraclass correlation coefficients (ICCs) were used to compare the measurements. Results: The mean SFChT was 319.5 μm and 325.3 μm for DRI OCT-1 and Spectralis OCT, respectively (P = 0.001), with a mean difference of 5.9 with ICC of 0.97. The mean difference in choroidal thickness between the OCT devices was larger among eyes with choroidal thickness > 350 μm compared with eyes with thinner choroids (8.0 μm vs. 4.7 μm). Conclusions: SFChT measurements are comparable between DRI OCT-1 and Spectralis OCT. The variability between the devices increases in thicker choroids.
Keywords
Publication details
- DOI
- 10.4103/ojo.ojo_27_2017
- Journal
- Oman Journal of Ophthalmology, 11(1), 38-41
- Publisher
- Medknow Publications
- Open access
- Gold open access
Cite this article
APA 7
Narendran, S., Manayath, G., & Venkatapathy, N. (2018). Comparison of choroidal thickness using swept-source and spectral-domain optical coherence tomography in normal Indian eyes. Oman Journal of Ophthalmology, 11(1), 38-41. https://doi.org/10.4103/ojo.ojo_27_2017
MLA 9
Narendran, Siddharth, et al. "Comparison of choroidal thickness using swept-source and spectral-domain optical coherence tomography in normal Indian eyes." Oman Journal of Ophthalmology, vol. 11, no. 1, 2018, pp. 38-41. https://doi.org/10.4103/ojo.ojo_27_2017.
Chicago (author–date)
Narendran, Siddharth, George Manayath, and Narendran Venkatapathy. 2018. "Comparison of choroidal thickness using swept-source and spectral-domain optical coherence tomography in normal Indian eyes." Oman Journal of Ophthalmology 11 (1): 38-41. https://doi.org/10.4103/ojo.ojo_27_2017.
Harvard
Narendran, S., Manayath, G. and Venkatapathy, N. (2018) 'Comparison of choroidal thickness using swept-source and spectral-domain optical coherence tomography in normal Indian eyes', Oman Journal of Ophthalmology, 11(1), pp. 38-41. doi:10.4103/ojo.ojo_27_2017.
Vancouver
Narendran S, Manayath G, Venkatapathy N. Comparison of choroidal thickness using swept-source and spectral-domain optical coherence tomography in normal Indian eyes. Oman Journal of Ophthalmology. 2018;11(1):38-41. doi:10.4103/ojo.ojo_27_2017
IEEE
S. Narendran, G. Manayath, and N. Venkatapathy, "Comparison of choroidal thickness using swept-source and spectral-domain optical coherence tomography in normal Indian eyes," Oman Journal of Ophthalmology, vol. 11, no. 1, pp. 38-41, 2018, doi: 10.4103/ojo.ojo_27_2017.