View clinical trials related to Myopia.
Filter by:To determine if patients are unreactive to the lens care solution / Biofinity combination.
The study hypothesis is that the Biofinity Toric XR lenses will perform as well as or better than the participants' habitual contact lenses.
Orthokeratology is becoming popular for the treatment of myopia children. Many studies have shown that orthokeratology is effective in temporarily reducing refractive error, and is also helpful for controlling myopia progression. However, the mechanism for its slowing myopia progression and rebound effect after the treatment have not been clearly studied. In addition, the effect of orthokeratology among Chinese children has not been evaluated with randomized controlled trial.This study is to assess the effect of orthokeratology versus spectacles on myopia progression in school-aged Chinese children during two years.
The objective of this study is to determine if multifocal contact lenses affect accommodation and/or binocular vision when worn by pediatric patients. This will be accomplished through subjective and objective accommodative and binocular experiments in children wearing single vision and multifocal soft contact lenses.
This was a prospective, case-control study investigating aqueous levels of VEGF and PEDF in eyes with mCNV treated with IVB.
The purpose of this study is to evaluate the comfort of color contact lenses in a population of clear contact lens wearers who have an interest in wearing color contact lenses.
High myopia is characterized by prolonged axial length and posterior staphyloma, which result in choroid-retinal degeneration and vision decrease. At present, vitrectomy can lead to anatomical improvements, but an higher axial length and the presence of a sever posterior staphyloma remains to be the two most important risk factors for poor visual outcomes. For these reasons, a different surgical approach, including macular buckling, might be considered in those patients with extremely high degree of myopia, in order to counteract the traction exerted by the posterior staphyloma. Macular buckling with or without pars plana vitrectomy had been proved to be an effective way to resolve myopic staphyloma related foveoschisis, macular hole, and associated retinal detachment. In this study, we sought to investigate the safety and efficacy of a macular buckling technique using a three-armed silicone capsule to support the posterior staphyloma in high myopia.
The investigators are administering a validated questionnaire looking at patient reported quality of life and quality of vision after LASIK surgery
The purpose of this study is to demonstrate that Lotrafilcon B AIR OPTIX® AQUA sphere modified design lenses are noninferior to Lotrafilcon B AIR OPTIX® AQUA in overall lens fit by comparing the percent of subjects satisfying the "no re-fit" criteria in each treatment group.
The aim of the stuy is to investigate the effects of the adoption of a curriculum with electronic devices for teaching materials and textbooks in Hong Kong schoolchildren on their changes in refractive error and visual function.