S Chaber1, H Helbig, Ma Gamulescu. 1. Klinik und Poliklinik für Augenheilkunde, Universität Regensburg, Franz-Josef-Strauss Allee 11, 93053 Regensburg, Deutschland. chaber@eye-regensburg.de
Abstract
BACKGROUND: When changing from previously used time domain OCTs (TD-OCT) to frequency domain OCTs (FD-OCT) the question arises how to evaluate the progress of macular disease. METHODS: OCT examinations and calculation (mapping) of the central retinal thickness were carried out in 40 healthy eyes with the Stratus OCT (Carl Zeiss Meditec Inc.; TD-OCT) as well as the Spectralis-OCT (Heidelberg Engineering GmbH 2008; FD-OCT). RESULTS: The average central macular thickness was 218 microm in the Stratus OCT and 282 microm in the Spectralis-OCT. The average difference was 69 microm (p < 0.001). The mean value of single measurements showed a macular thickness of 195 microm when performed with the Stratus OCT and of 235 microm with the Spectralis-OCT. The difference of 40 microm was statistically significant (p < 0.001).
BACKGROUND: When changing from previously used time domain OCTs (TD-OCT) to frequency domain OCTs (FD-OCT) the question arises how to evaluate the progress of macular disease. METHODS:OCT examinations and calculation (mapping) of the central retinal thickness were carried out in 40 healthy eyes with the Stratus OCT (Carl Zeiss Meditec Inc.; TD-OCT) as well as the Spectralis-OCT (Heidelberg Engineering GmbH 2008; FD-OCT). RESULTS: The average central macular thickness was 218 microm in the Stratus OCT and 282 microm in the Spectralis-OCT. The average difference was 69 microm (p < 0.001). The mean value of single measurements showed a macular thickness of 195 microm when performed with the Stratus OCT and of 235 microm with the Spectralis-OCT. The difference of 40 microm was statistically significant (p < 0.001).
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