Clinical trials: Asthenopia
Visual Fatigue
The Effect of 3D Autostereoscopic Video-game Play on the Visual Fatigue in Children
This study aims to examine the specific effect that 3D game play has on the control of the eyes horizontal movements. It will examine the youngest group of consumers this technology is marketed to, 7 to 11-year-olds and no…
- Trial name
- NCT02407015
- Testing
- Nintendo 3DS gameplay
- Where
- United Kingdom
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of Sheffield
Myopia,, Hyperopia,
Refraction Determination Analysis
Correlating the accuracy of a refraction done over telemedicine to that of a standard refraction, with a study hypothesis that the results will be equivalent.
- Conditions
- Myopia,, Hyperopia,, Astigmatism,, Presbyopia,
- Trial name
- NCT01995435
- Testing
- Telemedicine refraction, Traditional refraction
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Lee, Steven, M.D.
Symptomatic Musculoskeletal Diseases, Latent Musculoskeletal Diseases
Active Prevention of MSDs (Musculoskeletal Disorders, Upper and Spine Members) in the Context of Computer Screen Work
Evaluate the benefit of an intervention by a computer program comprising active breaks, in the form of a personalized self-program on functional impairment and / or pain, among employees with latent or symptomatic upper extremity…
- Trial name
- I-Preventive (NCT02350244)
- Testing
- Computer program
- Where
- France
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University Hospital, Clermont-Ferrand
Refractive Error, Presbyopia
Randomized Clinical Trial of Bifocal Lenses Versus Computer-specific Progressive Addition Lenses
This is a research study designed to test the utility of D-shaped bifocal lenses and PRIO Computer Lenses for persons using a computer.
- Conditions
- Refractive Error, Presbyopia, Asthenopia, Eyeglasses
- Trial name
- NCT00585026
- Testing
- D-28 bifocal lenses and frame, Progressive addition computer lenses and frame
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Visual Fatigue
Visual Discomfort and Reading
Reading can be an uncomfortable and difficult task for some people. Symptoms include unpleasant somatic and perceptual effects, such as eye-strain, headache, and blurred text, despite normal visual acuity.
- Trial name
- NCT00402155
- Testing
- Stress on visual discomfort
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Southern California College of Optometry at Marshall B. Ketchum University
Refractive Errors, Asthenopia
Effects of Different Add Powers on the Comfort and Productivity of Computer Users With Fixed or Free Head Movement
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.
- Trial name
- NCT00317525
- Testing
- Spectacle Lenses
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- American Optometric Association
Refractive Error
Effects of Optical Blur on Performance and Comfort of Computer Users
The aim of this study is to examine the relationship between optical blur from poor refractive corrections (glasses) of workers using computers and their productivity and comfort in the workplace.
- Trial name
- NCT00318045
- Testing
- Eyeglass lenses
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Vision Council of America