Table 6. Comparison of RMS values of specific high-order aberrations before and after surgery in the FS-LASIK group.

Parameters	Preop.	1mo after surgery	3mo after surgery
Total HOA	0.38±0.16	0.59±0.17a	0.54±0.18a
Coma	0.22±0.18	0.32±0.18a	0.29±0.19a
Trefoil	0.19±0.11	0.21±0.13	0.21±0.11
Spherical aberration	0.11±0.09	0.23±0.19a	0.19±0.17a
3rd order	0.31±0.15	0.35±0.10	0.34±0.11
4th order	0.19±0.08	0.22±0.10	0.21±0.12
5th order	0.10±0.07	0.11±0.09	0.11±0.08

^aCompared with preoperative value, P<0.05.

µm