Table 2.

Average corneal thickness measurements (obtained in Cagliari).

PMI	Close mode	Open mode
	Mean ± SD	Mean ± SD
2nd hour	601.3 ± 12.1	600.3 ± 10.7
3rd hour	605.4 ± 12.7	598.0 ± 7.6
4th hour	625.0 ± 24.1	456.2 ± 12.5
5th hour	611.4 ± 30.1	530.3 ± 41.2
6th hour	645.3 ± 41.2	465.5 ± 41.2
7th hour	618.8 ± 36.2	401.0 ± 40.5
8th hour	642.6 ± 41.3	387.5 ± 38.7
9th hour	651.4 ± 38.2	381.2 ± 42.1
10th hour	676.4 ± 41.5	366.1 ± 41.1
11th hour	672.7 ± 40.9	361.7 ± 39.1
12th hour	700.1 ± 42.2	369.4 ± 40.4
13th hour	698.3 ± 41.6	361.7 ± 37.8
14th hour	703.7 ± 42.3	363.1 ± 40.2
15th hour	671.5 ± 39.3	341.5 ± 36.5
16th hour	878.5 ± 24.2	323.4 ± 35.6
17th hour	945.3 ± 27.2	348.6 ± 39.2

Data are expressed at the mean ± SD (in micrometers).