Effect of orthokeratology on precision and agreement assessment of a new swept-source optical coherence tomography biometer

Table 3 Inter-observer reproducibility of ocular biological parameters measured using the new swept-source optical coherence tomography biometer in children before and after wearing orthokeratology lens

Parameter	Status	S_w	R	CoV (%)	ICC
AL (mm)	Before	0.01	0.02	0.03	1.000
AL (mm)	After	0.01	0.02	0.03	1.000
CCT (μm)	Before	2.36	6.53	0.44	0.994
CCT (μm)	After	2.53	7.02	0.48	0.994
ACD (mm)	Before	0.02	0.06	0.54	0.988
ACD (mm)	After	0.02	0.06	0.64	0.989
LT (mm)	Before	0.03	0.07	0.75	0.967
LT (mm)	After	0.02	0.07	0.71	0.985
Km (Φ = 2.5) (D)	Before	0.06	0.17	0.14	0.998
Km (Φ = 2.5) (D)	After	0.08	0.21	0.19	0.998
Km (Φ = 3.0) (D)	Before	0.06	0.17	0.14	0.998
Km (Φ = 3.0) (D)	After	0.06	0.18	0.15	0.998
CD (mm)	Before	0.06	0.17	0.50	0.980
CD (mm)	After	0.06	0.17	0.50	0.976

AL= Axial length; CCT= central corneal thickness; ACD= anterior chamber depth; LT= lens thickness; Km= mean keratometry; CD= corneal diameter; SD= standard deviation; Sw= within-subject standard deviation; R= reproducibility limit (2.77 Sw); CoV= within-subject coefficient of variation; ICC= intraclass correlation coefficient

ISSN: 2326-0254