Corneal Biomechanical Changes after Crosslinking for Progressive Keratoconus with the Corneal Visualization Scheimpflug Technology

Table 3

Differences for the parameters with statistically significant changes after CXL.

Parameter (unit)	Before CXL		3 months after CXL		Differences
	Median (Q25/Q75)	Mean (±SD)	Median (Q25/Q75)	Mean (±SD)	Median (Q25/Q75)	Mean (±SD)
IOP (mmHg)^†	11.00 (9.00/12.50)	11.26 (2.76)	14.00 (12.00/16.00)	15.12 (8.31)	+3.00 (+4.50/0.00)	+3.85 (7.33)
pachy (µm)*	487 (473 /539)	498 (42.99)	452 (438 /502)	463 (45.33)	−41 (−14 /−50)	−35.00 (26.05)
A1time (ms)^†	6.93 (6.78/7.13)	6.96 (0.28)	7.12 (6.87/7.35)	7.29 (0.92)	+0.12 (+0.32/0.00)	+0.33 (0.80)
A2time (ms)^†	22.25 (21.84/22.46)	22.16 (0.46)	21.65 (21.54/21.95)	21.66 (0.83)	−0.37 (+0.10/−0.79)	−0.47 (0.78)

Normally distributed.
^†Not normally distributed.
The relevant differences are in bold font.