Corneal Topographic and Aberrometric Measurements Obtained with a Multidiagnostic Device in Healthy Eyes: Intrasession Repeatability
Table 1
Summary of the intrasession repeatability outcomes for the corneal curvature and eccentricity measurements obtained by means of the VX120 system.
Overall mean (SD) Overall median (range)
ICC (range 95% CI)
(mm)
42.28 (1.61)
0.19
0.37
0.52
0.993
42.38 (37.63 to 45.98)
(0.990 to 0.995)
(mm)
43.11 (1.64)
0.20
0.39
0.55
0.993
43.31 (38.63 to 47.01)
(0.990 to 0.995)
(mm)
42.69 (1.60)
0.18
0.35
0.50
0.993
42.96 (38.19 to 46.49)
(0.991 to 0.995)
(D)
0.82 (0.59)
0.11
0.21
0.30
0.976
0.75 (0.00 to 3.75)
(0.967 to 0.983)
(degrees)
102.96 (72.17)
5.76
11.29
15.95
0.995
136.67 (1 a 180)
(0.993 to 0.996)
0.34 (0.31)
0.07
0.13
0.19
0.957
0.43 (−1.16 to 0.83)
(0.941 to 0.969)
(mm)
42.03 (1.63)
0.25
0.49
0.69
0.988
42.21 (37.18 to 45.75)
(0.984 to 0.992)
(mm)
42.89 (1.66)
0.25
0.49
0.69
0.989
43.09 (37.99 to 46.96)
(0.985 to 0.992)
(mm)
42.46 (1.62)
0.22
0.44
0.62
0.991
42.65 (37.89 to 46.34)
(0.987 to 0.993)
(D)
0.85 (0.56)
0.20
0.40
0.56
0.913
0.67 (0.08 to 3.42)
(0.879 to 0.938)
(degrees)
85.81 (67.43)
5.76
11.28
15.95
0.975
85.00 (0 to 180)
(0.966 to 0.982)
(mm)
42.11 (1.60)
0.20
0.39
0.55
0.992
42.28 (37.57 to 45.79)
(0.989 to 0.994)
(mm)
42.94 (1.62)
0.21
0.41
0.58
0.992
43.12 (38.69 to 46.90)
(0.989 to 0.994)
(mm)
42.52 (1.59)
0.19
0.37
0.52
0.993
42.79 (38.22 to 46.34)
(0.990 to 0.995)
(D)
0.82 (0.58)
0.145
0.283
0.40
0.960
0.67 (0.08 to 3.67)
(0.944 to 0.971)
(degrees)
91.83 (70.67)
6.653
13.041
18.43
0.993
97.67 (0 to 180)
(0.991 to 0.995)
(mm)
42.03 (1.55)
0.20
0.40
0.56
0.987
42.12 (37.68 to 45.67)
(0.982 to 0.991)
(mm)
42.86 (1.57)
0.19
0.36
0.52
0.993
43.01 (39.26 to 46.79)
(0.991 to 0.995)
(mm)
42.44 (1.53)
0.18
0.35
0.50
0.992
42.56 (38.70 to 46.21)
(0.989 to 0.994)
(D)
0.83 (0.59)
0.139
0.273
0.39
0.923
0.75 (0.25 to 3.75)
(0.893 to 0.945)
(degrees)
88.82 (70.73)
8.247
16.164
22.84
0.988
91.67 (0 to 180)
(0.984 to 0.992)
SD, standard deviation; keratometric flattest () and steepest () corneal radius, mean keratometric corneal radius (), and mean keratometric astigmatism () and its axis (), corneal eccentricity (), flattest () and steepest () corneal radius, mean corneal radius (), and mean astigmatism () and its axis () in a 3 mm central zone, flattest () and steepest () corneal radius, mean corneal radius (), and mean astigmatism () and its axis () in a 5 mm central zone, and flattest () and steepest () corneal radius, mean corneal radius (), and mean astigmatism () and its axis () in a 7 mm central zone.
