Status | Study |
Terminated |
Study Name: Randomized Clinical Trial of Bifocal Lenses Versus Computer-specific Progressive Addition Lenses Condition: Refractive Error Presbyopia Asthenop Date: 2007-12-21 Interventions: Device: D-28 bifocal lenses and frame Devi |
Completed |
Study Name: Visual Discomfort and Reading Condition: Visual Fatigue Date: 2006-11-17 Interventions: Behavioral: Stress on visual discomfort Effects of visual discomfort are measured by contrast sensitivit |
Completed |
Study Name: Effects of Different Add Powers on the Comfort and Productivity of Computer Users With Fixed or Free Head Movement Condition: Refractive Errors Asthenopia Date: 2006-04-21 Interventions: Device: Spectacle Lenses |
Completed |
Study Name: Effects of Optical Blur on Performance and Comfort of Computer Users Condition: Refractive Error Date: 2006-04-21 Interventions: Device: Eyeglass lenses |