Table 8. Overall and subscale scores of DeMask-20 instrument according to spectacle use.
| Subscales | Spectacles | ||||
|---|---|---|---|---|---|
| Mean ± SD [95% CI] | p value | ||||
| No use | For distance | For near | For distance and near | ||
| Driving | 3.59 ± 1.32 [3.45–3.73] | 3.03 ± 1.58 [2.86–3.2] | 3.10 ± 1.54 [2.93–3.27] | 3.50 ± 1.75 [3.31–3.69] | 0.177 |
| Near vision | 4.43 ± 0.84 [4.38–4.48] | 4.26 ± 0.90 [4.21–4.31] | 4.13 ± 1.10 [4.07–4.19] | 4.01 ± 1.05 [3.95–4.07] | 0.002* |
| Collaboration | 4.02 ± 1.05 [3.94–4.10] | 3.95 ± 1.17 [3.87–4.03] | 4.02 ± 1.01 [3.95–4.09] | 4.02 ± 1.09 [3.94–4.10] | 0.943 |
| Distance vision | 4.52 ± 0.65 [4.48–4.56] | 4.32 ± 0.86 [4.27–4.37] | 4.50 ± 0.65 [4.46–4.54] | 4.26 ± 0.91 [4.21–4.31] | 0.008* |
| Role limitation | 2.50 ± 0.98 [4.44–4.56] | 2.59 ± 0.90 [2.54–2.64] | 2.56 ± 0.99 [2.50–2.62] | 2.53 ± 0.83 [2.48–2.58] | 0.772 |
| Dependency | 4.45 ± 0.91 [4.40–4.50] | 4.54 ± 0.75 [4.50–4.58] | 4.31 ± 0.97 [4.26–4.36] | 4.44 ± 1.01 [4.38–4.50] | 0.251 |
| Emotional stress | 3.08 ± 1.37 [3.00–3.16] | 3.13 ± 1.32 [3.06–3.20] | 3.08 ± 1.42 [3.00–3.16] | 3.40 ± 1.25 [3.33–3.47] | 0.390 |
| Ocular discomfort | 3.60 ± 1.29 [3.53–3.67] | 3.39 ± 1.20 [3.32–3.46] | 3.44 ± 1.25 [3.37–3.51] | 3.61 ± 1.39 [3.53–3.69] | 0.278 |
| DeMask-20 score | 3.85 ± 0.70 [3.81–3.89] | 3.75 ± 0.69 [3.71–3.79] | 3.73 ± 0.76 [3.69–3.77] | 3.73 ± 0.77 [3.69–3.77] | 0.034** |
*p < 0.01
** p < 0.05; CI: Confidence Interval; SD: Standard Deviation.