Repeatability of a fully automated swept-source optical coherence tomography biometer and agreement with a low coherence reflectometry biometer

Table 1 Repeatability analysis of the two optical biometers for the different parameters assessed

Parameter/Biometer	S_w	CoV (%)	CoR
K1 (D)
Eyestar 900	0.079	0.18	0.218
Lenstar LS 900	0.073	0.17	0.202
K2 (D)
Eyestar 900	0.075	0.17	0.209
Lenstar LS 900	0.162	0.37	0.449
CCT (μm)
Eyestar 900	1.559	0.29	4.320
Lenstar LS 900	2.936	0.54	8.133
ACD (mm)
Eyestar 900	0.018	0.61	0.050
Lenstar LS 900	0.035	1.20	0.098
LT (mm)
Eyestar 900	0.021	0.56	0.058
Lenstar LS 900	0.066	1.74	0.184
AL (mm)
Eyestar 900	0.008	0.03	0.022
Lenstar LS 900	0.014	0.06	0.040

K1 = flat keratometry; K2 = steep keratometry; CCT = central corneal thickness; ACD = anterior chamber depth; LT = lens thickness; AL = axial length; S_w = within subject standard deviation; CoV = coefficient of variability; CoR = coefficient of repeatability

ISSN: 2326-0254