Active clinical trials for "Myopia"

The purpose of this study is to: evaluate the safety and efficacy of conventional PRK in U.S. Army personnel who have naturally occurring myopia with or without astigmatism. compare the data from this control group to study groups undergoing wavefront guided PRK.

This study was designed to compare the difference of using atropine eyedrops alone from atropine combined with the stimulation of auricular acupoints therapy in reducing myopia progression.

The aims of this study are to investigate the effects of ortho-k for astigmatic and myopic reduction and myopic control in children, and the long term effects on corneal curvatures and biomechanics.

This study seeks to evaluate a new daily disposable contact lens compared to an existing daily disposable contact lens.

The purpose of the study is to determine if progressive addition lenses (PALs) versus single vision lenses (SVLs) slow the progression of low myopia in children with poor accommodative responses (i.e., large accommodative lags) and near esophoria.

At this time, we do not know what causes a child to become more nearsighted (myopic). STAMP will help us better understand nearsightedness in children. Children will be randomly chosen to wear regular glasses (single vision lenses) or no-line bifocal glasses (progressive addition lenses) for the first year of the study. All children will wear regular glasses for the second year of the study. STAMP will compare how the eye changes shape in the two groups to help us understand why children become nearsighted. The two theories of myopia progression that are being evaluated are based on different factors. One theory is based on environmental factors such as extended near work while the other theory is based on genetically coded factors.

The objective of this study was to compare the safety and effectiveness of two versions of the Bausch & Lomb Zyoptix Tissue Saving Aspheric Algorithm versus the current Zyoptix Tissue Saving Algorithm when used for myopia and myopic astigmatism LASIK treatment.

The purpose of the study is to evaluate the fit and performance of an investigational soft contact lens in comparison with a currently marketed lens. Both lenses will be worn on a continuous wear basis, which means the lenses will be worn while sleeping.

The purpose of the study is to compare the results of LASIK surgery when using Alcon Allegretto wavefront-guided excimer laser system compared to AMO Visx Custom wavefront-guided excimer laser system in patients with nearsightedness with and without astigmatism.

The aims of the study is to evaluate whether the DISC3.5 Plus contact lens will slow myopia progression and axial length growth in myopic children as compared with single vision soft contact lenses.