The purpose of this study is to compare the subjective performance for handling of two daily disposable contact lenses, stenfilcon A and etafilcon A.
The study is to compare the subjective performance for handling of two daily disposable contact lenses, stenfilcon A and etafilcon A in this cross-over study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Enrollment
100
Participants wear a first pair of lenses for two weeks and then crossover and wear an alternate second pair of lenses for two weeks.
Participants wear a first pair of lenses for two weeks and then crossover and wear an alternate second pair of lenses for two weeks.
Keith Tempany Opticians
Broadstone, Dorset, United Kingdom
Cameron-Davies Optometrists
Southsea, Hampshire, United Kingdom
Cameron-Davies Optometrists
Portchester, Hants, United Kingdom
Leightons Opticians
St Albans, Hertfordshire, United Kingdom
Handling
Participant's subjective rating for lens handling of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Each pair worn for two weeks daily disposable wear basis (at least 40 hours per week). Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (0-10, 10= very easy).
Time frame: two weeks and four weeks from baseline visit
Satisfaction With Handling
Participant's subjective rating for overall satisfaction of lens handling of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Each pair worn for two weeks daily disposable wear basis (at least 40 hours per week). Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (5 point Likert scale - Completely Dissatisfied, Somewhat Dissatisfied, Neither, Somewhat Satisfied, Completely Satisfied).
Time frame: two weeks and four weeks from baseline visit
Comfort
Participant's subjective rating for overall lens comfort of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (0-10, 10=can't feel).
Time frame: two weeks and four weeks from baseline visit
Dryness
Participant's subjective rating for overall lens dryness of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Each pair worn for two weeks daily disposable wear basis (at least 40 hours per week). Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (0-10, 10=no dryness).
Time frame: two weeks and four weeks from baseline visit
Satisfaction With Dryness
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David Gould Opticians
Rawtenstall, Lancashire, United Kingdom
Vision Express Optical Lab
Hendon, London, United Kingdom
S.H. Harrold
Uxbridge, London, United Kingdom
Participant's subjective rating for overall satisfaction of lens dryness of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Each pair worn for two weeks daily disposable wear basis (at least 40 hours per week). Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (5 point Likert scale - Completely Dissatisfied, Somewhat Dissatisfied, Neither, Somewhat Satisfied, Completely Satisfied).
Time frame: two weeks and four weeks from baseline visit
Satisfaction With Comfort
Participant's subjective rating for overall satisfaction of lens comfort of Pair #1 surveyed at 2 weeks (+3) days after baseline visit and Pair #2 surveyed at 4 weeks (+3) days after baseline visit. Each pair worn for two weeks daily disposable wear basis (at least 40 hours per week). Lenses worn minimum 2 hours prior to visit. Rated by questionnaires (5 point Likert scale - Completely Dissatisfied, Somewhat Dissatisfied, Neither, Somewhat Satisfied, Completely Satisfied).
Time frame: two weeks and four weeks from baseline visit