Three-year follow-up of biomicroscopy signs and refractive status in patients wearing lotrafilcon A lenses.

Purpose: To report the wearer experience, biomicroscopy signs, and stability of refractive error after 3 years' use of lotrafilcon A lenses.

Methods: Seventy-four subjects from a multicenter clinical trial with lotrafilcon A lenses were queried on aspects of lens wear. Biomicroscopy signs and refractive error were compared to baseline measurements.

Subjective experience with high-oxygen and low-oxygen permeable soft contact lenses in France.

Purpose: This article reports the subjective results of a study comparing extended-wear high-oxygen permeable (HDk) silicone hydrogel soft contact lenses with low-oxygen permeable (LDk) hydroxyethyl methacrylate lenses.

Methods: Six practitioners in France enrolled 134 subjects in this 4-month, open-label, multicenter, prospective, randomized, cross-over study. Subjects were randomized to receive prescriptions of either an HDk lotrafilcon A or an LDk etafilcon A soft contact lens.

Clinical results comparing high-oxygen and low-oxygen permeable soft contact lenses in France.

Purpose: This article reports clinical results comparing a high-oxygen permeable (HDk) silicone hydrogel soft contact lens with a low-oxygen permeable (LDk) soft hydroxyethyl methacrylate contact lens when worn on an extended-wear basis.

Methods: Six practitioners in France enrolled 134 subjects in this 4-month, open-label, multicenter, prospective, randomized, cross-over study. Subjects were randomized to receive either an HDk lotrafilcon A or an LDk etafilcon A soft contact lens.