1. A comparison of retinal nerve fiber layer (rnfl) thickness obtained with frequency and time domain optical coherence tomography (oct)

    A comparison of retinal nerve fiber layer (rnfl) thickness obtained with frequency and time domain optical coherence tomography (oct)
    To diagnose glaucoma and other diseases of the retinal ganglion cell/ optic nerve, the thickness of the retinal nerve fiber layer (RNFL) is routinely measured with optical coherence tomography. Until recently, these OCT measurements were made almost exclusively with a time domain OCT (tdOCT) machine from a single manufacturer. Recently, a number of OCT machines, based upon an improved frequency domain OCT technology (fdOCT), have appeared. We compared measurements made using a new fdOCT machine to those from the older tdOCT machine. The results were comparable. More importantly, we learned that the key factor determining whether results from different machines ...
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