Table 1.

The visante AS-OCT (anterior segment optical coherence tomography) properties.

Wavelength	1310 nm
Axial resolution	18 um
Transverse resolution	60 um
Depth of penetration	6 mm
Acquisition time	0.125 seconds per cross-section for overall anterior segment examination 0.25 seconds per cross-section for high resolution corneal examination
Image size	6 mm in depth by 16 mm wide for overall view of the anterior segment 3 mm in depth by 10 mm wide for high resolution Images
Coupling medium	Air
Patient position	Upright, seated
Operator requirement	Simple, non-contact test