Review Article
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 |
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