Repeatability and reproducibility of a new spectral-domain optical coherence tomography biometer and agreement with swept-source optical coherence tomography based biometer

Table 5 Results of agreement analysis between the Colombo IOL and IOLMaster 700 measurements

Parameter	Mean difference ± SD	P value	95% LoA
AL (mm)	− 0.03 ± 0.03	0.000	− 0.08 to 0.03
CCT (μm)	− 13.34 ± 4.21	0.000	− 21.58 to − 5.09
AQD (mm)	0.08 ± 0.04	0.000	0.01 to 0.15
ACD (mm)	0.07 ± 0.04	0.000	− 0.01 to 0.14
LT (mm)	0.02 ± 0.04	0.000	− 0.05 to 0.10
Kf (D)	0.22 ± 0.19	0.000	− 0.14 to 0.59
Ks (D)	0.04 ± 0.18	0.012	− 0.31 to 0.40
Km (D)	0.13 ± 0.13	0.000	− 0.13 to 0.40
AST (D)	− 0.18 ± 0.25	0.000	− 0.68 to 0.32
J₀ (D)	0.12 ± 0.11	0.000	− 0.09 to 0.34
J₄₅ (D)	0.09 ± 0.08	0.000	− 0.07 to 0.25
WTW (mm)	0.68 ± 0.40	0.000	− 0.11 to 1.47
PD (mm)	0.67 ± 0.84	0.000	− 0.97 to 2.31

AL = axial length; CCT = central corneal thickness; AQD = aqueous humor depth; ACD = anterior chamber depth; LT = lens thickness; Kf = flattest meridian keratometry; Ks = steepest meridian keratometry; Km = mean keratometry; AST = corneal astigmatism; J₀ = astigmatism parameters J₀; J₄₅ = astigmatism parameters J₄₅; WTW = white to white; PD = pupil diameter; SD = standard deviation; LoA = limits of agreement

ISSN: 2326-0254