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KMID : 0360220130540010097
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Journal of the Korean Ophthalmological Society
2013 Volume.54 No. 1 p.97 ~ p.103
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Comparison of the Efficacy between Time and Spectral Domain Optical Coherence Tomography for the Identification of Vitreomacular Interface
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You Ja-Young
Kim Hyung-Chan
Moon Jun-Woong
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Abstract
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Purpose: To compare the efficacy of time domain (TD) and spectral domain (SD) optical coherence tomography (OCT) in determining vitreomacular interface (VMI).
Methods: VMIs were evaluated with TD and SD OCT images crossing the fovea horizontally in 69 eyes (mean age 52.7 ± 15.4 years) and were classified as follows: (1) no vitreomacular separation (VMS), (2) incomplete VMS, and (3) unknown.
Results: In TD OCT, no VMS was observed in 2 eyes (2.9%), incomplete VMS in 2 eyes (2.9%), and unknown in 65 eyes (94.2%). In SD OCT, no VMS was observed in 31 eyes (45.0%), incomplete VMS in 13 eyes (18.8%), and unknown in 25 eyes (36.2%). In 31 eyes with no VMS on SD OCT, 29 eyes (93.5%) presented unknown on TD OCT (p<0.0001). In 13 eyes with incomplete VMS on SD OCT, 2 eyes (15.4%) showed incomplete VMS and 11 eyes (84.6%) showed unknown on TD OCT (p<0.0001). TD OCT was also non-informative in all 25 eyes with unknown on SD OCT.
Conclusions: SD OCT allows better visualization of VMI than TD OCT, especially in patients with no VMS.
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KEYWORD
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Spectral domain optical coherence tomography, Time domain optical coherence tomography, Vitreomacular interface, Vitreomacular separation
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