. 2020 Jun 17;258(10):2173–2184. doi: 10.1007/s00417-020-04792-8

Table 1.

Descriptive analysis of corneal strips of porcine eyes concerning stress-strain measurement. Significance is marked in italics

	Controls (n = 18)	S-CXL (3*30) (n = 18)	A-CXL (9*10) (n = 18)	A-CXL (18*5) (n = 18)	P value¹	P value²	P value³
Mean ± SD
Length of sample [mm] by a preload of 0.02 N/m²	7.18 ± 0.2	7.02 ± 0.19	7.18 ± 0.35	7.28 ± 0.41	0.720	1.0	1.0
Corneal thickness [mm]	0.74 ± 0.09	0.69 ± 0.09	0.69 ± 0.07	0.67 ± 0.06	0.265	0.253	0.026

Controls (n = 18)

S-CXL (3*30) (n = 18)

A-CXL (9*10) (n = 18)

A-CXL (18*5) (n = 18)

P value¹

P value²

P value³

Mean ± SD

Length of sample [mm]

by a preload of 0.02 N/m²

7.18 ± 0.2

7.02 ± 0.19

7.18 ± 0.35

7.28 ± 0.41

0.720

1.0

Corneal thickness [mm]

0.74 ± 0.09

0.69 ± 0.09

0.69 ± 0.07

0.67 ± 0.06

0.265

0.253

0.026

A-CXL accelerated CXL, S-CXL standard CXL

¹P value between controls and S-CXL (3*30)

²P value between controls and A-CXL (9*10)

³P value between controls and A-CXL (18*5)