Patients were recruited to participate in a market test for GUNNAR Optiks Digital Performance Eyewear, developed to reduce and minimize the eye muscle fatigue and dry eye symptoms associated with daily computer use.
•A total of 103 patients were recruited at three ophthalmologypractices located in the Los Angeles area. Patients were required to spend a good portion of their work day at a computer, and to have normal vision (uncorrected or corrected with contacts.)
•At the Initial visit, patient vision was assessed, and an appropriate pair of Digital Performance Eyewear was prescribed to wear while using the computer.•Patients visited the practice three times during the course ofthe market test.
•The Initial Visit assessed baseline symptoms, and Digital Performance Eyewear were prescribed.
•At the Second Visit—one week after the Initial Visit—symptoms were again assessed, and patients were asked several questions regarding their experience with the GUNNAR lenses.•The Exit Visit—approximately four weeks after the Initial Visit—was more extensive. Symptoms and perceptions were again assessed with a patient questionnaire, as was patient vision.
Data from the three visits was analyzed using standard market research techniques, using SPSS (Statistical Package for the Social Sciences) software.
• Data frequencies were prepared, and appropriate means and standard
deviations were computed to facilitate comparing patient self-reported symptoms and perceptions across time.
• Improvements in Digital Sensation ratings (slides 20-23) were calculated by subtracting the Initial visit score from the Second/Exit visit score. For example, if a patient gave a rating of ‘bad (3)’ for their initial visit and a rating of ‘mild (1)’ for their second visit, the difference is -2, scored as ‘Better’.
• Statistical significance testing was conducted using two-tailed t-tests, and was conducted at the 95% (alpha = .05) level. Results from this study are accurate to within +/- 11%, at a sample size of 103.
• In the opinion of the analyst—a professional market researcher with over 20 years of experience—the results of this study are robust, and demonstrate significant improvement in both symptoms experienced and perceptions.