Agreement Between Spectral Domain and Time Domain Optical Coherence Tomography (OCT)

Optical coherence tomography (OCT) is a well-established and safe technique that offers the possibility of visualizing retinal structure and measuring retinal thickness. Time-domain (TD)OCT is considered the "gold standard" technique for retinal thickness measurements. Spectral-domain (SD) OCT has to face the gold standard technique prior to obtain scientific and clinical consensus. In our study in healthy subjects foveal thickness will be measured with both TD and SD OCT , and the data will be compared to evidence any difference between the two retinal measurements techniques.