Table 2
 Percentage of patients within plus or minus 0.5D and plus or minus 1.0D of intended correction
Within plus or minus 0.5D at 6 months
Within plus or minus 0.5D at 5 years
Within plus or minus 1.0D at 6 months
Within plus or minus 1.0D at 5 years
All levels
72%
60%
89%
83%
Mild
90%
70%
100%
96%
Moderate
80%
66%
96%
91%
Severe
33%
33%
61%
50%