Contact Lens Spectrum
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c l s p e c t r u m . c o m C O N T A C T L E N S S P E C T R U M S P E C I A L E D I T I O N 2 0 1 6 27 baseline, using a 0 to 100 scale, with 0 denoting the least favorable rating and 100 denoting the most favor- able score. For context, descriptors were added to the rating scale for each category. As an example, the "end- of-day comfort" category designated 100 as "excellent; cannot be felt," 80 as "very comfortable; just felt oc- casionally," 60 as "comfortable; noticeable but not irri- tating," 40 as "uncomfortable; irritating or annoying," 20 as "very uncomfortable; very irritating or annoying," and 0 as "painful; difficult to wear lenses." After being refitted with Bausch + Lomb Ultra con- • spend at least 3 hours each workday using a com- puter or electronic device • have worn their current brand of silicone hydrogel contact lenses for at least 1 year • wear their current lenses for at least 12 hours per day for at least 4 days per week • are bothered by blurriness or fluctuations in vision and experience dry eyes with their current lenses. All participants had healthy eyes (corneal and conjunctival assessments ≤ Grade 1 and absent corneal infiltrates) and were myopic (-0.25D to -6.00D). Two hundred twenty-six patients with these char- acteristics were enrolled as the contact lens dry eye cohort. The majority of participants were female (69.0%).The average age was 26.8 years; the majority of participants were less than 30 years of age (Table 1). Mean refractive sphere and cylinder powers were -3.33D and -0.22D, respectively. A comparison of ha- bitual lens powers to study lens powers showed that 93.8% of lenses were within +/-0.25D. Patients in the contact lens dry eye cohort wore their habitual lenses an average of 14.3 hours per day. They spent an average of 5.1 hours using a desktop or notebook computer at the office and an average of 2.0 hours at home (Table 2). In addition, they used other digital devices (smartphone/tablet/e-book) an average of 3.2 hours per day. They reported the least amount of activity playing electronic games. THE PATIENT'S EXPERIENCE During the initial visit, patients rated symptoms at DIGITIAL DEVICE USE ACTIVITY AVG HOURS Work in an office in front of a computer 5.1 Work at home in front of a computer 2.0 Use a smartphone or tablet 3.2 Play electronic games 0.4 Watch TV 2.0 Study or read from a book, magazine, newspaper 1.5 Drive at night 1.1 AVERAGE HOURS SPENT DOING ACTIVITIES ON A TYPICAL DAY T A B L E 2 BASELINE BAUSCH + LOMB ULTRA Comfort Upon Insertion 80.0 87.8 Comfort at End of Day 58.8 77.2 Dryness 63.8 82.4 Redness 82.2 89.3 Vision 87.1 91.2 Vision in Low Light 78.8 88.8 Lens Cleanliness Upon Insertion 86.4 91.2 Lens Cleanliness Upon Removal 75.0 86.1 Ease of Handling/Insertion 87.2 87.5 Ease of Handling/Removal 84.5 89.8 AVERAGE RATINGS OF SYMPTOMS AT BASELINE AND AFTER REFIT WITH BAUSCH + LOMB ULTRA CONTACT LENSES T A B L E 3