At a glance
ClinicalIndex Comparison Record- ✓Myopia between -0.50 and -6.00 diopters
- ✓Esophoric fixation disparity at 33 cm with distance correction
- ✓Astigmatism 1.00 diopter or less
- ✓Ability to wear soft contact lenses
- ✕Ocular disease that prevents contact lens wear
- ✕Pregnancy or nursing
- ✕Use of certain medications
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Bifocal Soft Contact Lenses - Do They Slow Progression of Myopia Relative to Single Vision Soft Contact Lenses in Children and Adolescents?
In Brief
A clinical study evaluating Bifocal Contact Lenses and Placebo Control for Myopia and 2 related conditions. Completed, enrolled 78 participants.
Detailed Summary
The purpose of this study is to determine whether bifocal soft contact lenses are effective in controlling the progression of myopia in children and adolescents that exhibit a tendency to excessively cross their eyes while reading (esophoria or eso fixation disparity). Several studies have demonstrated that bifocal or progressive multifocal spectacles are effective in slowing the progression of myopia in children either with near point esophoria and/or with inadequate focusing at near. A prominent theory for one cause of myopia progression is that poorly focused images on the back of the eye (retina) cause the eye to lengthen, causing an increase in myopia. Bifocal contact lenses may reduce this retinal defocus, reducing the stimulus to eye elongation, and thus may reduce myopia progression.
Study Details
Timeline
Interventions
Use of bifocal contact lenses of varying add powers to control the progression of myopia
Single vision soft contact lenses