Randomized Clinical Trial of Bifocal Lenses Versus Computer-specific Progressive Addition Lenses

Stopped early · Phase 3

Conditions studied: Refractive Error, Presbyopia, Asthenopia, Eyeglasses

In brief

This is a research study designed to test the utility of D-shaped bifocal lenses and PRIO Computer Lenses for persons using a computer. We hypothesize that lenses specially designed for computer use may allow more comfortable and productive work on a computer.

Key facts

Study ID

NCT00585026

Run by

University of Alabama at Birmingham

People needed

40

Starts

2006-10-01

Expected to finish

2007-06-01

Last updated by the study team

2011-06-15

Who can join

Age: 40 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 40 yrs of age or greater
• 20/40 or better corrected visual acuity in each eye
• 4 hrs or more of computer use per workday

You may not qualify if…

• None

Where it is running

• School of Optometry — Birmingham, Alabama, United States

Full record on ClinicalTrials.gov

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