This study is comparing two silicone hydrogel contact lenses in a controlled environment for identification of characteristics associated to vision.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
45
Each study contact lens will be worn as daily wear modality for a period of 2 weeks each.
Each study contact lens will be worn as daily wear modality for a period of 2 weeks each.
Unnamed facility
London, United Kingdom
Tear Film Kinetics
The non-invasive tear film break-up-time (NIBUT) is the time elapsed (in seconds) between eye opening after a blink, and the appearance of the first dark spot within the tear film when observed with the wide diffuse light source of the Tearscope. This measurement is indicative of the tear film stability and the on eye wettability of contact lenses.
Time frame: 8 hour post insertion
Time Controlled Visual Acuity
The Time Controlled Visual Acuity test is a proprietary test part of MG Vision Advanced Visual Performance Assessment. The test for distance vision is carried out at 4m under high contrast and dim luminance. The test is presented on a fast response 17" LCD screen (1280 by 1064). The test for intermediate vision is carried out at 64cm under high contrast dim luminance. The test was presented on a fast response 13.3" LCD screen (3200 by 1800). Visual acuity will be measured in a controlled environment using logMAR units.
Time frame: 8 hours post insertion
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