Multifocal Visual Performance Study

Stopped early · Not applicable

Conditions studied: Presbyopia

In brief

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.

Key facts

Study ID

NCT03757039

Run by

Alcon Research

People needed

42

Starts

2018-12-16

Expected to finish

2019-03-06

Last updated by the study team

2020-03-25

Who can join

Age: 38 and older, up to 58. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• 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.

You may not qualify if…

• 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.

Where it is running

• Alcon Investigative Site — Houston, Texas, United States
• Alcon Investigative Site — Birmingham, United Kingdom

Full record on ClinicalTrials.gov

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