Table 3.

Statistics of corneal topography and axial elongation.

	Class 1	Class 2	Class 3	Class 4
Number of samples	933	1,167	375	129
Accuracy	99%	98%	99%	99%
1-year axial elongation	0.2	0.13	0.12	0.28
Standard deviation of axial length	0.21	0.17	0.07	0.11