Table 1.

Features of various optical coherence tomography systems.

Features	TD-OCT	SD-OCT	SS-OCT
	Movable Reference Mirror	Mobile Reference Mirror, Spectrometer	Swept-Source Laser
Wavelength	810 nm	840 nm	1052 nm
Axial resolution	10 µm	8 µm	6 µm
Lateral resolution	20 µm	20 µm	20 µm
Speed of A scan per sec	512	50,000	100,000
B scan measurement time	-	1.0 s (50×)	1.0 s (96×)
Length of line scan	6 mm	Up to 9 mm	Up to 12 mm
Artifacts	more	less	less