Variety, Variability and Veracity: Macular Thickness and Reproducibility Among Optical Coherence Tomography Systems
Spectral-domain optical coherence tomography (SD OCT) has had a profound impact on clinical and experimental ophthalmology, but also presented practicing eye specialists with the important and expensive decision of whether to invest in SD OCT technology. Unlike time-domain (TD) OCT, for which only one company had commercial propriety, there are several SD OCT systems currently available. Also, unlike other previous potential competitors of TD OCT, all SD OCT devices provide fast, high-resolution, retinal cross-sectional scans. Therefore, a method to differentiate these systems is desirable, especially in nonexperimental settings.