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. 2022 Dec 3;22:468. doi: 10.1186/s12886-022-02672-9

Table 3.

The comparison of corneal radius of curvatures (CR) between Myopia master, IOLMaster 700 and ARK-1

Device Mean±SD (min,max) Compared test
(p value)
Correlation test ICC Difference of
the means
95% LOA
r P Lower Upper

K-flat

(mm)

Myopia master 7.89±0.26(7.39,8.88) 0.944 0.988

all

<0.001

0.994

(0.992,0.995)

0 -0.07 0.08
IOLMaster 700 7.88±0.26(7.28, 8.88)
Myopia master as above 0.986 0.957

0.978

(0.972,0.983)

0 -0.15 0.15
ARK-1 7.89±0.26(7.38,8.88)
IOLMaster 700 as above 0.912 0.953

0.976

(0.969,0.981)

0.07 -0.15 0.16
ARK-1 as above

K-steep

(mm)

Myopia master 7.68±0.25(7.11, 8.54) 0.059 0.951

0.974

(0.966,0.980)

0.04 -0.11 0.19
IOLMaster 700 7.64±0.23(7.09, 8.24)
Myopia master as above 0.136 0.901

0.947

(0.932,0.959)

0.04 -0.17 0.27
ARK-1 7.64±0.24(7.03,8.28)
IOLMaster 700 as above 0.691 0.919

0.958

(0.945,0.967)

0 -0.19 0.19
ARK-1 as above

K-mean

(mm)

Myopia master 7.78±0.24(7.25, 8.64) 0.364 0.982

0.977

(0.958,0.986)

0.02 -0.06 0.12
IOLMaster 700 7.76±0.24(7.22, 8.54)
Myopia master as above 0.494 0.946

0.943

(0.923,0.957)

0.02 -0.13 0.17
ARK-1 7.76±0.24(7.20,8.56)
IOLMaster 700 as above 0.819 0.959

0.959

(0.947,0.968)

0 -0.13 0.14
ARK-1 as above

SD standard deviation, ICC (A, 1) intraclass correlation coefficiens (inter-rater reliability, two-way random effect model), LOA limit of agreements