Multifocal Visual Performance Study

Multifocal Visual Performance Study - Seamless Transition With Precision Profile MF Lenses

The purpose of this trial was to compare the functional visual performance of Precision Profile Multifocal (MF) contact lenses to Progressive Addition Lens (PAL) spectacles in a presbyopic population.

Habitual contact lens wearers were randomized 1:1:1 to one of three commercially available multifocal contact lenses. Progressive addition lens wearers wore their habitual spectacles. Subjects were expected to attend 1 or 2 office visits. This study was terminated early by Alcon due to slow enrollment and inconsistency in measurement of the primary endpoint.

Inclusion Criteria:

• Normal eyes, other than correction for refractive error;
• Habitual correction of either any multifocal contact lens with a maximum add of +2.00 Diopter (D), or progressive addition lens spectacles with a maximum add of +2.00 D;
• Wears habitual correction at least 5 days per week and at least 6 hours per day.

Exclusion Criteria:

• Monocular subjects;
• Subjects fit with only one contact lens;
• Known pregnancy or lactating;
• History of or planned refractive surgery or irregular cornea in either eye.

Other protocol-specified inclusion and/or exclusion criteria may apply.