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%