1 How much difficulty do you have driving in glare conditions with your contact lenses? | 1.05 (0.5) | 1.13 (1.1) | 44.6 (1.2) |
2 How much difficulty do you have performing any activity due to dim lighting with your contact lenses? | 0.88 (−1.2) | 0.97 (−0.2) | 41.5 (1.2) |
3 During the past month, how often have you experienced your vision changing/fluctuating throughout the day, either improving or deteriorating with your contact lenses? | 1.10 (0.9) | 1.19 (1.4) | 42.1 (1.2) |
4 During the past month, how often have you experienced focusing difficulties with your contact lenses? | 0.88 (−1.1) | 0.90 (−0.8) | 40.9 (1.2) |
5 During the past month, how often have you experienced your eyes feeling tired or strained with your contact lenses? | 0.91 (−1.0) | 0.94 (−0.6) | 51.7 (1.1) |
6 During the past month, how often have you experienced red/painful/itchy/burning/sore/uncomfortable/gritty or dry eyes with your contact lenses? | 1.06 (0.6) | 1.06 (0.6) | 44.4 (1.1) |
7 How much trouble is the routine care of your contact lenses (e.g., cleaning, using eye drops)? | 0.96 (−0.3) | 0.88 (−0.9) | 40.0 (1.3) |
8 How much trouble is having to think about contact lenses before doing things (traveling, sport, going swimming)? | 0.89 (−1.2) | 0.88 (−1.3) | 53.3 (1.1) |
9 How much trouble is having to carry additional cleaning supplies for contact lenses when traveling? | 1.17 (1.8) | 1.16 (1.6) | 49.6 (1.1) |
10 How much trouble is having to insert things into your eyes (e.g., contact lens, eye drops)? | 0.93 (−0.6) | 0.95 (−0.4) | 40.0 (1.2) |
11 How much trouble is being unable to have good, comfortable vision all day with your contact lenses? | 1.09 (0.9) | 1.03 (0.3) | 42.1 (1.2) |
12 How concerned are you about the initial and ongoing cost of buying your current contact lenses? | 1.01 (0.1) | 1.00 (0.0) | 53.3 (1.1) |
13 How concerned are you about the cost of your next contact lenses? | 0.90 (−1.2) | 0.88 (−1.4) | 51.6 (1.1) |
14 How concerned are you about the cost of unscheduled maintenance of your contact lenses: breakage, loss, running out of supplies? | 0.83 (−2.0) | 0.88 (−1.3) | 48.5 (1.1) |
15 How concerned are you about having to rely increasingly on your contact lenses since you started to wear them? | 1.09 (1.0) | 1.11 (1.1) | 52.4 (1.1) |
16 How concerned are you about your vision being not as good as it could be with your contact lenses? | 1.03 (0.4) | 1.02 (0.3) | 48.6 (1.1) |
17 How concerned are you about medical complications from your contact lenses? | 1.02 (0.2) | 0.98 (−0.2) | 43.0 (1.2) |
18 How concerned are you about eye allergies/infections? | 0.92 (−0.9) | 0.93 (−0.7) | 49.5 (1.1) |
19 How concerned are you about falling asleep in your contact lenses? | 1.10 (1.1) | 1.10 (1.0) | 50.8 (1.1) |
20 How concerned are you about eye protection from ultraviolet (UV) radiation? | 1.17 (1.8) | 1.17 (1.7) | 48.4 (1.1) |
21 During the past month, how much of the time have you felt that you have looked your best when wearing contact lenses? | 0.86 (−1.5) | 0.85 (−1.5) | 54.8 (0.9) |
22 During the past month, how much of the time have you felt happy with your facial appearance when wearing contact lenses? | 1.00 (0.0) | 1.00 (0.0) | 54.1 (0.9) |
23 During the past month, how much of the time have you felt that others see you the way you would like them to when wearing contact lenses (e.g., intelligent, sophisticated, successful, cool)? | 1.04 (0.4) | 1.05 (0.5) | 56.9 (1.0) |
24 During the past month, how much of the time have you felt complimented/flattered when wearing contact lenses? | 1.22 (1.48) | 1.18 (1.45) | 63.0 (1.1) |
25 During the past month, how much of the time have you felt confident when wearing contact lenses? | 0.84 (−1.7) | 0.84 (−1.6) | 51.3 (0.9) |
26 During the past month, how much of the time have you felt happy when wearing contact lenses? | 0.73 (−2.8) | 0.74 (−2.6) | 47.3 (0.9) |
27 During the past month, how much of the time have you felt able to do the things you want to do when wearing contact lenses? | 1.17 (1.5) | 1.19 (1.7) | 47.2 (0.9) |
28 During the past month, how much of the time have you felt eager to try new things when wearing contact lenses? | 1.12 (1.2) | 1.11 (1.1) | 51.5 (0.9) |