Clinical performance of a daily disposable contact lens: a 3-month prospective study

Abstract

Thirty-one myopic patients, 20 of whom were experienced contact lens wearers, were fitted with 1-Day Acuvue lenses, −253(±0.18) dioptres (D) on average, at initial dispensing. These lenses are inserted in the morning and disposed of every night. After an initial examination, the patients were followed up after 1 week and 12 weeks of lens wear. Visual acuity was 1.25(±0.02) on average, at the 12-week follow-up, significantly ( P <0.005) better with the 1-Day Acuvue lenses than with the patients' previous lenses. Subjectively reported symptoms decreased significantly ( P <0.02) after the patients' previous lenses were replaced with the 1-Day Acuvue lenses (20 patients); dryness/burning decreased from 35% to 5% ( P <0.001). Slit-lamp findings also decreased significantly ( P<0.001), injection from 23% to 0% and tarsal abnormalities from 20% to 0% (20 patients). There were no true complications. All 20 experienced lens wearers had deposit problems before the study, but these disappeared with the 1-Day lenses. When the experienced wearers compared their former lenses with their new 1 -Day Acuvue lenses, the latter were judged significantly ( P <0.01–0.001) better regarding comfort and vision, equal regarding determination of lens orientation and worse ( P <0.01) regarding lens handling. Overall satisfaction — a general assessment — favoured the 1-Day lenses at a highly significant ( P <0.001) level, however. Thus, the 1-Day Acuvue concept appears very attractive with regard to complication rate as well as performance.