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- Title
Comparing central retinal thickness in diabetic macular edema measured by two different spectral-domain optical coherence tomography devices.
- Authors
Suzuma, Kiyoshi; Yamada, Yoshihisa; Liu, Michi; Tsuiki, Eiko; Fujikawa, Azusa; Kitaoka, Takashi
- Abstract
Purpose: We evaluated central retinal thickness (CRT) in diabetic macular edema (DME) using two different spectral-domain (SD) optical coherence tomography (OCT) instruments: the Cirrus and Spectralis OCTs. Methods: CRT was measured in 63 eyes of 32 patients with DME using both instruments on the same day. Results: CRT measurements were significantly greater for the Spectralis than the Cirrus ( p < 0.0003, n = 63, paired t test); mean CRT values were 382 ± 136 μm with the Cirrus and 394 ± 139 μm with the Spectralis. In eyes with poor best-corrected visual acuity (BCVA) (<20/40), mean CRT was 378 ± 130 μm with the Cirrus and 395 ± 139 μm with the Spectralis ( p < 0.007, n = 29). In eyes with good acuity (equal to or better than 20/40), the mean CRT was 385 ± 142 μm with the Cirrus and 393 ± 140 μm with the Spectralis ( p < 0.005, n = 34). Conclusions: Foveal retinal thickness measurements may vary among SD-OCT devices. The differences between instruments could affect the results of a multicenter study.
- Subjects
EDEMA; OPTICAL coherence tomography; MEDICAL radiography; VISUAL acuity; EYE diseases
- Publication
Japanese Journal of Ophthalmology, 2011, Vol 55, Issue 6, p620
- ISSN
0021-5155
- Publication type
Article
- DOI
10.1007/s10384-011-0085-4