Table 1

Mean and cumulative changes in the cycloplegic SER and AL from baseline to 36 months in the DIMS group and Control-to-DIMS group

Time (months)Mean±SD
DIMS
(n=65)
Control-to-DIMS
(n=55)
DIMS
(n=65)
Control-to-DIMS
(n=55)
SER (D)Changes in SER (D)
0−2.98±0.96−2.73±0.99
6−3.10±0.97−3.07±1.02−0.12±0.30−0.34±0.33
12−3.16±0.97−3.22±1.08−0.18±0.37−0.49±0.40
18−3.23±0.96−3.41±1.09−0.25±0.50−0.68±0.52
24−3.32±1.00−3.61±1.15−0.34±0.52−0.87±0.59
30−3.39±1.01−3.73±1.23−0.41±0.58−1.00±0.67
36−3.50±1.08−3.65±1.34−0.52±0.69−0.92±0.81
Time (months)AL (mm)Changes in AL (mm)
024.68±0.8224.57±0.88
624.72±0.8124.75±0.890.04±0.100.18±0.09
1224.78±0.8124.86±0.910.10±0.140.29±0.14
1824.81±0.8124.97±0.930.13±0.180.40±0.18
2424.88±0.8025.06±0.960.20±0.210.49±0.24
3024.93±0.7925.12±0.990.25±0.240.55±0.27
3624.99±0.8025.14±1.010.31±0.260.57±0.33
  • The grey blocks indicate the period of wearing DIMS lenses in the Control-to-DIMS group.

  • AL, axial length; Control-to-DIMS, subjects wore single vision spectacle lens during the 2-year randomised controlled trial and switched to wear DIMS lens; D, dioptres; DIMS, defocus incorporated multiple segments; SER, spherical equivalent refraction.