Trial Outcomes & Findings for Clinical Evaluation of Approved and Investigational Contact Lenses Using New UV Additive (NCT NCT02982018)

A total of 133 subjects were enrolled into the study. Of the enrolled subjects 131 were dispensed study lenses and 2 subjects failed to meet the eligibility criteria. Of the dispensed subjects 123 completed the study and 8 subjects were discontinued.

Clinical Evaluation of Approved and Investigational Contact Lenses Using New UV Additive

Eyestrain related to glare was assessed at the 2-, 4-, 8- and 12- week follow-up visits using an 11-item questionnaire. This questionnaire assesses patient-experience attributes of soft contact lenses. Derived eyestrain related to glare scores using Item Response Theory (IRT) follow a normal distribution with a mean of 50 and a standard deviation of 10. Scores in this study ranged from 30 to 70. Lower scores indicate better performance. This questionnaire is still under development and the data collected is considered exploratory.

Distance logMAR Visual Acuity was assessed for each subject and eye at 2-, 4- 8- and 12-weeks. The average logMAR visual acuity for each lens and time point was reported. Lower values of logMAR indicate better vision.

Slit lamp findings were graded using a FDA Grade Scale, 0 = None, 1 = Slight, 2 = Moderate, 3 = Significant, 4 = Advanced. Measurements were taken in each subject eye at the initial visit, 2-4-8- and 12-week follow-ups. A new response variable was derived by dichotomizing the data as follows: 1 if a Grade 3or higher SLF was observed and 0 otherwise. The Percentage of eyes with Grade 3 or higher SLFs was reported for each lens and time point.

Contact lens wearing time (hours) was self-reported by each subject at the 2-, 4-, 8- and 12-week follow-ups. The average contact lens wearing time (hours) for each lens and time point was reported.

Symptoms, problems and complaints are subject reported and were collected for each subject eye at the 1-, 2-, 4-, 8- and 12-week follow-up evaluations. The data is reported as a binary outcome of yes if a subject experience a problem or complaint or no otherwise. Symptoms, problems and complaints include the following: Burning/Stinging, Itchiness/Scratchiness, Dryness, Lens Awareness, Grittiness/Foreign Body Sensation, Redness, Irritation/Discomfort, Cloudy/Blurry/Hazy, Variable Vision and Other The Percentage of subjects eyes with symptoms, problems or complaints was reported for each lens and time point.