The purpose of this study is to explore the effect of masking on subjective ratings for two daily disposable contact lenses.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
134
Commercially marketed, soft, hydrogel contact lens for daily wear, daily disposable use. Blister pack label and lens packaging visible to participant. Lenses inserted and removed by participant.
Commercially marketed, soft, hydrogel contact lens with comfort additive for daily wear, daily disposable use. Blister pack label and lens packaging visible to participant. Lenses and removed inserted by participant.
Commercially marketed, soft, hydrogel contact lens for daily wear, daily disposable use. Blister pack label and packaging not visible to participant. Lenses inserted and removed by the investigator.
Centre for Contact Lens Research: University of Waterloo
Waterloo, Ontario, Canada
Average Subjective Comfort
Participants were asked, "How would you rate your comfort with your study lenses?" and indicated their response by marking a continuum line ranging from 0=very poor comfort to 100=excellent comfort. Subjective comfort was collected at three time points (insertion, 4 hours, 8 hours) for 3 days, and the comfort ratings were averaged together.
Time frame: Insertion, 4 hours, 8 hours each: Day 1, Day 2, and Day 3
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Commercially marketed, soft, hydrogel contact lens for daily wear, daily disposable use. Lens name and manufacturer on blister pack label concealed from participant. Lenses inserted and removed by the participant.
Commercially marketed, soft, hydrogel contact lens for daily wear, daily disposable use. Blister pack label and lens packaging visible to participant. Lenses inserted and removed by participant.
Commercially marketed, soft, hydrogel contact lens with comfort additive for daily wear, daily disposable use. Blister pack label and lens packaging visible to participant. Lenses inserted and removed by participant.
Commercially marketed, soft, hydrogel contact lens for daily wear, daily disposable use. Blister pack label and packaging not visible to participant. Lenses inserted and removed by the investigator.
Commercially marketed, soft, hydrogel contact lens for daily wear, daily disposable use. Lens name and manufacturer on blister pack label concealed from participant. Lenses inserted and removed by the participant.