Investigational silicone hydrogel, single-vision, soft contact lens worn for four weeks at least as often as and on the same basis as participant's habitual lenses, as prescribed by participant's eye care practitioner -- ie., on a daily wear, flex wear, or extended wear basis.

Overall preference when comparing study lenses to "habitual" lenses, as interpreted by the participant and reported on a questionnaire as a single, retrospective evaluation of four weeks' wear time. Overall preference was measured on a 5-point Likert scale as follows: Strongly Prefer Study Lenses; Somewhat Prefer Study Lenses; No Preference; Somewhat Prefer "Habitual" Lenses; Strongly Prefer "Habitual" Lenses.

In this single group study, all participants wore an investigational lotrafilcon A silicone hydrogel, single-vision, soft contact lens in both eyes for a period of four weeks. Participants wore the study lenses at least as often as they wore their habitual lenses, and as prescribed by their eye care practitioners -- ie., on a daily wear, flex wear, or extended wear basis.

Overall preference when comparing study lenses to "habitual" lenses, as interpreted by the participant and reported on a questionnaire as a single, retrospective evaluation of four weeks' wear time. Overall preference was measured on a 5-point Likert scale as follows: Strongly Prefer Study Lenses; Somewhat Prefer Study Lenses; No Preference; Somewhat Prefer "Habitual" Lenses; Strongly Prefer "Habitual" Lenses.

Analysis conducted per protocol, with exclusions due to reasons such as: major protocol deviations as determined by masked review; discontinuations; and/or missing responses.

In this single group study, all participants wore an investigational lotrafilcon A silicone hydrogel, single-vision, soft contact lens in both eyes for a period of four weeks. Participants wore the study lenses at least as often as they wore their habitual lenses, and as prescribed by their eye care practitioners -- ie., on a daily wear, flex wear, or extended wear basis.