Simultaneous Transepithelial Topography-Guided Photorefractive Keratectomy and Accelerated Cross-Linking in Keratoconus: 2-Year Follow-Up

Table 6

Preoperative and postoperative pachymetry.

Corneal pachymetry	Preoperative	1 Month	3 Months	6 Months	12 Months	24 Months
Mean±SD	470±32	403±51	401±46	404±47,11	415±46	415±45
Range (Min/Max)	406/529	313/479	318/480	318/480	311/496	311/496
p	-	<0.001	<0.001	<0.001	<0.001	<0.001
p	-	-	0.272	0.137	0.301	0.803

SD: standard deviation; Min: minimum; Max: maximum
: compared to preoperative visit; paired samples t-test, two-tailed.
: compared to previous visit; paired samples t-test, two-tailed.