A comparison of two lens designs manufactured in the same material. The hypothesis is the subjectively rated performance of comfort, vision and lens handling will be better with the modified design compared to the initial design
The objectives of the study are 1. to identify possible reasons for the different comfort and vision experience in Japanese CL wearers compared to Caucasian CL wearers and 2. to assess whether the modification of lens thickness in the optical zone results in increased comfort and reduced visual acuity fluctuations in Caucasian eyes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
16
Randomized in a daily wear, single day (6 hours or more) evaluation
University of Waterloo
Waterloo, Ontario, Canada
Participant's subjective rating of comfort, Questionnaire
Participants rate their eye comfort by subjective questionnaire (non-annotated scale, 0-100, 0=painful, 100=can't feel the lenses)
Time frame: 2 Days
Participant's subjective rating of vision, Questionnaire
Participants rate their vision by subjective questionnaire (non-annotated scale, 0-100, 0=not at all sharp/clear, 100=sharp/clear
Time frame: 2 Days
Participant's subjective rating of lens handling, Questionnaire
Participants rate their ability to handle the contact lens by subjective questionnaire (non-annotated scale, 0-100, 0=very difficult, 100=very easy
Time frame: 2 Days
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.