Changing Trends of Imaging in Angle Closure Evaluation

Table 1

Presents the details of UBM as well as ASOCT devices available in the market.

	UBM (50 MHz)	Stratus-OCT	Visante-OCT (TD-OCT)	RTVue (FD-OCT)	Cirrus high-definition OCT (HD-OCT)
Light source	Ultrasound	Super luminescent Diode 820 nm	Super luminescent Diode 1310 nm	Super luminescent Diode 840 nm	Super luminescent Diode 840 nm
Scan size	Up to 7 mm tissue depth	6 mm (width) × 2 mm (depth)	16 mm × 6 mm	2 mm × 2 mm (CAM-S) OR 6 mm × 2 mm (CAM-L)	3 mm × 1 mm
Scans rate (A-scans/second)	1000	400	2,000	26,000	27,000
Axial resolution	30 μm	10 μm	18 μm	5 μm	5 μm