Dual Focus Daily Disposable Contact Lens Allows Satisfactory Wearing Experience

A dual focus daily disposable contact lens enables children to quickly adapt to full-time wear, according to a study published in Contact Lens and Anterior Eye. Neophyte wearers and individuals switching from another lens both report satisfaction with the lens, according to the report.  

An initial investigation (part 1) compared wearing experiences between children (age range, 8-12 years) wearing the dual focus daily disposable contact lens (n=65) and single vision contact lenses (n=70) during a 3-year study duration. Among these participants, 85 children wore the dual focus lenses for an additional 3 years (part 2). The research team evaluated comfort and satisfaction with the lenses using questionnaires complete by children and their caretakers at baseline, 1 week, 1 month, and every 6 months thereafter until reaching 60 months. Children completed questionnaires at 66 and 72 months without caretaker reporting.

Overall, top 2 box scores showed that children reported high satisfaction with handling (≥89%), comfort (≥94%), vision (≥93% for various activities), and overall satisfaction (≥97%) while wearing the dual focus daily disposable lenses. Comfort and vision ratings were not significantly different between treatment groups, visits, or study parts 1 and 2, and did not change when children switched from single vision lenses to the treatment lens. 

Children who were neophyte wearers reported that lens application was ‘really easy’ or ‘kind of easy’ during earlier phases of the study (57% at 1-week follow-up and 85% at 1-month follow-up) and these values remained high throughout the study. In part 2 of the investigation, overall satisfaction improved (P = .04) and wearing times increased for the dual focus daily disposable lens compared with part 1 (14 vs. 13 hrs/weekday; 13 vs. 12 hrs/day on weekends; P < .001).

“[T]he results demonstrate the adaptability of children switching to different designs and support the practice of moving adapted myopic contact lens wearers into a myopia-control intervention,” the study authors explain.   

Study limitations include the exclusion of unsuccessful dual focus daily disposable lens wearers, the potential for self-reporting bias, and a failure to include a spectacle control group. 

Disclosure: This research was supported by CooperVision Inc. Please see the original reference for a full list of disclosures.