Table 4.
Summary of previous studies for the agreement of CCT measurements obtained by other Scheimpflug systems, Orbscan II and specular microscopes in comparison to Pentacam or ultrasound pachymetry.
| Author (year) | Patients/eyes | Device pairings | Mean difference (μm) ± SD | P value | 95% LoA (μm) |
|---|---|---|---|---|---|
| Lanza et al. [27] (2015) | 102/102 | Pentacam-Orbscan II | 13.66 ± 16.53 | <0.0001 | −18.74 to 46.06 |
| Sirius-Orbscan II | 15.18 ± 17.16 | <0.0001 | −18.45 to 48.81 | ||
| Sirius-Pentacam | 1.52 ± 6.21 | 0.015 | −10.65 to 13.69 | ||
|
| |||||
| Khaja et al. [28] (2015) | 32/32 | USP-Orbscan II | 2.8 ± 0.28 | NA | −30.15 to 24.40 |
| USP-specular microscopy | 8.69 ± 1.24 | NA | −8.82 to 27.4 | ||
|
| |||||
| Smedowski et al. [29] (2014) | 76/152 | Corvis ST-Pentacam | NA | >0.05 | NA |
| Corvis ST-USP | NA | >0.05 | NA | ||
|
| |||||
| Huang et al. [30] (2014) | 66/66 | Pentacam-Sirius | −3.3 ± 5.2 | <0.001 | −13.6 to 6.9 |
| Pentacam-Galilei | −9.3 ± 3.7 | <0.001 | −16.6 to −2.0 | ||
| Sirius-Galilei | −6.0 ± 4.0 | <0.001 | −13.8 to 1.9 | ||
|
| |||||
| Anayol et al. [31] (2014) | 32/32 | Galilei-Pentacam | 13.93 ± 0.88 | <0.001 | 11.74 to 16.12 |
| Galilei-Sirius | 14.66 ± 0.69 | <0.001 | 12.96 to 16.37 | ||
| Pentacam-Sirius | 0.73 ± 0.93 | 1.0 | −1.50 to 3.02 | ||
|
| |||||
| Maresca et al. [32] (2014) | 35/35 | Sirius-USP | −13.9 ± 14.4 | <0.001 | −42.2 to 14.4 |
|
| |||||
| Feizi et al. [33] (2014) | 88/88 | USP-Orbscan | −14.5 ± 22.9 | <0.001 | −59.4 to 30.4 |
| USP-Galilei | −16.0 ± 19.6 | <0.001 | −54.5 to 22.5 | ||
| Orbscan-Galilei | −1.5 ± 17.0 | 0.99 | −34.8 to 31.9 | ||
|
| |||||
| De La Parra-Colín et al. [34] (2014) | 16/16 | Sirius-Pentacam | −10.1 ± 9.0 | NA | −27.7 to 7.5 |
|
| |||||
| Jorgel et al. [35] (2013) | 50/50 | Sirius-USP | 4.68 ± 10.47 | 0.003 | −15.84 to 25.20 |
|
| |||||
| Bayhan et al. [36] (2014) | 50/50 | USP-Sirius | 17.58 ± 8.13 | <0.001 | 15.27 to 19.89 |
|
| |||||
| Huang et al. [37] (2013) | 43/43 | Sirius-USP | 6.88 ± 6.77 | 0.000 | −6.39 to 20.14 |
|
| |||||
| Nassiri et al. [38] (2014) | 32/61 | Pentacam-USP | −1 ± 9 | 0.32 | −20 to 17 |
| Orbscan II-USP | 6 ± 14 | <0.001 | −21 to 33 | ||
|
| |||||
| Al Farhan et al. [39] (2013) | 30/30 | USP-specular microscopy | −2.40 ± 9.10 | 0.16 | −38.70 to 39.90 |
|
| |||||
| Tai et al. [40] (2013) | 92/184 | Pentacam-USP | 10.08 ± 10.96 | 0.012 | −11.40 to 31.56 |
| Specular microscopy-USP | −20.49 ± 8.91 | <0.001 | −37.95 to −3.04 | ||
| Specular microscopy-Pentacam | −30.57 ± 10.26 | <0.001 | −59.69 to −10.45 | ||
|
| |||||
| Chen et al. [41] (2012) | 35/35 | Pentacam-USP | 5.27 ± 9.55 | 0.007 | −24.0 to −13.4 |
|
| |||||
| Aramberri et al. [42] (2012) | 35/35 | Pentacam-Galilei | −2.76 ± 4.52 | <0.01 | −6.1 to 11.6 |
|
| |||||
| González-Pérez et al. [43] (2011) | 22/22 | USP-Pentacam | 3 ± 10 | 0.233 | −16.2 to 21.2 |
| USP-Orbscan II | 32 ± 15 | <0.001 | 3.1 to 60.8 | ||
| USP-specular microscopy | 26 ± 37 | 0.004 | −46.2 to 97.8 | ||
| Pentacam-Orbscan II | 29 ± 11 | <0.001 | 7.2 to 51.6 | ||
| Pentacam-specular microscopy | 23 ± 32 | 0.003 | −40.2 to 86.2 | ||
| Orbscan II-specular microscopy | −6 ± 35 | 0.399 | −74.8 to 62.0 | ||
| USP-Orbscan II | −15 ± 17 | 0.001 | −47.9 to 18.7 | ||
| Pentacam-Orbscan II | −17 ± 14 | <0.001 | −43.9 to 9.8 | ||