Table 1 Summary of characteristics of commercially available AS-OCT machines
From: Optical coherence tomography for ocular surface and corneal diseases: a review
Instrument | Company | Measurement type | Approximate axial resolution | Scanning speed per minute |
|---|---|---|---|---|
Stratus OCT | Carl Zeiss Meditec | Time-domain | 10 μm | 400 A scans |
Visante OCT | Carl Zeiss Meditec | Time-domain | 18 μm | 2000 A scans |
Slit-lamp OCT | Heidelberg | Time-domain | 25 μm | 2000 A scans |
Spectralis OCT | Heidelberg | Spectral-domain | 4–7 μm | 40,000 A scans |
Cirrus OCT | Carl Zeiss Meditec | Spectral-domain | 5 μm | 27,000 A scans |
OCT SLO | Optos | Spectral-domain | < 6 μm | 27,000 A scans |
3D OCT 2000 | Topcon | Spectral-domain | 5–6 μm | 50,000 A scans |
RT Vue and iVue | Optovue | Spectral-domain | 5 μm | 26,000 A scans |
Avanti | Optovue | Spectral-domain | ~ 5 μm | 70,000 A scans |
SS-1000 CASIA | Tomey | Spectral-domain (swept source) | 10 μm | 30,000 A scans |
Ultra high resolution OCT | Custom build device | Spectral-domain | ~ 3 μm | 24,000 to 26,000 A scans |