The purpose of this study is to evaluate the effect of contact lens lubricity on lid wiper epitheliopathy (LWE) in symptomatic contact lens wearers. LWE is defined as an alteration of that portion of the marginal conjunctival epithelium of the upper eyelid that wipes the ocular surface during blinking.
This study will be conducted in two stages. In Stage 1, participants will wear either spectacles or contact lenses for two weeks to determine the impact of interruption of contact lens wear on LWE. In Stage 2, a second cohort of participants will wear one of two contact lens brands for two weeks, and LWE and ocular discomfort will be compared.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
187
Per participant's habitual prescription
Silicone hydrogel single vision contact lenses
Hydrogel single vision contact lenses
Stage 1: Percent of Eyes Experiencing at Least 1 Grade Reduction in LWE at 2 Weeks
LWE was measured by slit lamp evaluation of fluorescein and lissamine green staining of the upper eyelid. LWE was graded on a scale from 0 to 3, where 0=none and 3=severe. The percent of eyes experiencing at least a 1 grade reduction in LWE (from baseline) at the 2-week visit was compared between groups. One eye (study eye) contributed to the analysis.
Time frame: Baseline, Week 2
Stage 2: Percent of Eyes Experiencing at Least 1 Grade Reduction in LWE at 2 Weeks
This outcome measure was not evaluated since primary efficacy was not demonstrated.
Time frame: Baseline, Week 2
Stage 2: Change From Baseline in Ocular Discomfort Score (as Measured by SPEED) at 2 Weeks
This outcome measure was not evaluated since primary efficacy was not demonstrated.
Time frame: Baseline, Week 2
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