Table 4.

Correlation of NEI VFQ-25 subscales with subscales of the SF-36

SF-36
NEI VFQ-25	Physical functioning	Role physical	Role emotional	Energy fatigue	Emotional wellbeing	Social functioning	Pain	General health
General health	0.434**	0.308**	0.057	0.512**	−0.342**	0.420**	0.251**	0.716**
General vision	0.486**	0.393**	−0.078	0.299**	−0.266**	0.255**	0.373**	0.402**
Ocular pain	0.375**	0.417**	0.330**	0.188	−0.445**	0.429**	0.223*	0.283**
Near activities	0.322**	0.249**	−0.093	0.333**	−0.134	0.147	0.320**	0.242*
Distance activities	0.403**	0.376**	−0.007	0.371**	−0.322**	0.324**	0.360**	0.313**
Social function	0.457**	0.398**	0.073	0.351**	−0.109	0.277**	0.458**	0.257**
Mental health	0.532**	0.432**	0.229*	0.391**	−0.409**	0.420**	0.915**	0.336**
Roles difficulties	0.513**	0.468**	0.034	0.479**	−0.319**	0.484**	0.515**	0.319**
Dependency	0.568**	0.434**	0.147	0.519**	−0.490**	0.527**	0.725**	0.339**
Driving	−0.178	−0.053	0.137	0.062	−0.215	0.238	0.155	−0.111
Color vision	0.313**	0.289**	0.193*	0.257**	−0.213*	0.357**	0.299**	0.016
Peripheral vision	0.275**	0.295**	0.180	0.147	−0.116	0.148	0.205*	0.085

*Significant at the 0.05 level (2-tailed)

**Significant at the 0.01 level (2-tailed)