Effects of Different Add Powers on the Comfort and Productivity of Computer Users With Fixed or Free Head Movement

Completed · Phase 3

Conditions studied: Refractive Errors, Asthenopia

In brief

The aim of this study is to examine the relationship between optical blur from poor refractive corrections (glasses) of older workers using computers and their productivity and comfort in the workplace. The investigators believe that improving the visual status of subjects who use computers will have a beneficial effect on productivity and visual comfort.

Key facts

Study ID

NCT00317525

Run by

American Optometric Association

People needed

36

Starts

2005-05-01

Expected to finish

2006-06-01

Last updated by the study team

2006-09-11

Who can join

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

You may qualify if…

• 40 years of age or greater
• 20/40 visual acuity or better in each eye
• Use a computer at least 1 hour per work day

Where it is running

• School of Optometry — Birmingham, Alabama, United States

Full record on ClinicalTrials.gov

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