Table 3.

Mean, and standard deviation (SD) of the measured values for each variable and each type of lens.

		Lens type
		Clear lens	STD DRIVE	PRO DRIVE	p-value *	p-value **
Photopic Best Corrected Visual Acuity	PALa group	−0.08 ± 0.08	−0.07 ± 0.08	−0.08 ± 0.09	.891	.37
	SVLb group	−0.13 ± 0.09	−0.13 ± 0.07	−0.14 ± 0.07	.601	.290
Mesopic Best Corrected Visual Acuity	PALa group	0.15 ± 0.11	0.12 ± 0.09	0.13 ± 0.11	.033	.197
	SVLb group	0.07 ± 0.07	0.06 ± 0.07	0.07 ± 0.08	.597	.804
Best Corrected Visual Acuity under glare	PALa group	0.03 ± 0.14	−0.02 ± 0.17	−0.01 ± 0.13	.007	.017
	SVLb group	−0.08 ± 0.07	−0.12 ± 0.09	−0.12 ± 0.09	.002	.008
logCSc 1.5 cycles/deg	PALa group	1.65 ± 0.14	1.67 ± 0.14	1.70 ± 0.12	.320	.138
	SVLb group	1.76 ± 0.15	1.81 ± 0.19	1.83 ± 0.17	.163	.032
logCSc 3.0 cycles/deg	PALa group	1.81 ± 0.13	1.84 ± 0.11	1.86 ± 0.10	.376	.177
	SVLb group	1.98 ± 0.14	2.00 ± 0.17	2.00 ± 0.12	.450	.579
logCSc 6.0 cycles/deg	PALa group	1.84 ± 0.15	1.92 ± 0.15	1.91 ± 0.10	.011	.008
	SVLb group	2.06 ± 0.14	2.06 ± 0.16	2.06 ± 0.16	.987	1.000
logCSc 12.0 cycles/deg	PALa group	1.50 ± 0.15	1.59 ± 0.20	1.54 ± 0.21	.013	.081
	SVLb group	1.77 ± 0.15	1.87 ± 0.16	1.82 ± 0.21	.019	.222
logCSc 18.0 cycles/deg	PALa group	1.10 ± 0.23	1.21 ± 0.31	1.16 ± 0.27	.030	.109
	SVLb group	1.45 ± 0.25	1.49 ± 0.22	1.44 ± 0.20	.336	.815

^aProgressive addition lenses.

^bSingle vision lenses.

^cContrast sensitivity.

^*Value according to t-test for paired data on mean values of STD DRIVE vs clear lens.

^**Value according to t-test for paired data on mean values of PRO DRIVE vs clear lens.