Table 3.

The results of the factor analyses.

Factors	Factor1	Factor2	Factor3	Factor4	Factor5
Drugs	−0.176	0.164	0.439	−0.425	0.339
Sex	−0.249	0.042	−0.162	0.025	−0.718
Age	−0.065	0.149	−0.035	−0.125	−0.089
Mean duration of computer work	−0.231	−0.091	−0.102	−0.478	−0.206
Use of other dry eye medications	0.029	0.196	−0.002	0.414	−0.311
Corrected visual acuity	0.069	0.080	−0.234	0.258	0.703
Schirmer’s I test	0.037	−0.061	0.228	−0.583	0.040
Comfort for eye drop use	−0.154	−0.017	0.806	−0.210	0.034
Easy to use	0.014	−0.296	0.667	−0.134	−0.206
Willing to use more	0.028	−0.211	0.813	0.057	−0.113
Δ log(BUT)	0.166	−0.214	−0.114	−0.027	0.559
Δ Staining scores	−0.113	−0.133	0.062	−0.417	−0.192
Δ DEQS score (total)	0.921	0.050	−0.061	0.483	0.179
Δ DEQS score (ocular symptom)	0.922	0.045	0.021	0.200	0.237
Δ DEQS score (QOL)	0.753	0.046	−0.119	0.638	0.098
Δ Foreign body sensation	0.601	0.221	0.000	−0.056	0.344
Δ Dry sensation	0.574	0.102	0.388	0.087	0.221
Δ Ocular pain	0.819	−0.110	−0.084	0.320	0.000
Δ Eye strain	0.680	−0.210	0.183	0.093	0.099
Δ Heavy feeling	0.604	0.141	−0.375	0.120	0.069
Δ Eye redness	0.232	0.595	−0.209	0.111	0.056
Δ Difficulty in eye open	0.660	0.269	−0.115	0.247	0.504
Δ Blurring	0.388	0.346	−0.157	0.209	0.111
Δ Photophobia	0.639	−0.211	−0.116	0.531	0.081
Δ Newspaper reading	0.403	−0.207	−0.120	0.727	−0.230
Δ TV watching	0.602	−0.068	−0.119	−0.190	−0.182

*Factors with strong association were shown in bold.