Active clinical trials for "Myopia"

The objective of this study is to evaluate the performance of the PureVision Contact Lens compared to Acuvue Oasys Contact lens and O2Optix Contact lens when worn on a daily wear basis.

The purpose of this study was to clinically evaluate lens care solutions used with soft contact lenses.

The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery. Study subjects will undergo the treatment of their choice (PRK or LASIK) and will be evaluated before and after treatment. Evaluations will include best corrected visual acuity, uncorrected visual acuity, psychometric questionnaire, pupil size, biomicroscopic examination, manifest refraction, wavefront measurements, low contrast acuity, and contrast sensitivity at normal and at low luminance with and without disability glare.

This double-masked, randomized, bilateral, crossover, direct refit study compared the clinical performance of two daily disposable contact lenses (somofilcon A and stenfilcon A) when fitted to existing wearers of comfilcon A monthly lenses.

In Taiwan, the increasing prevalence of myopia shows a decline with age. Myopia has become a serious ocular problem in children because high myopia may lead to retinal damage, cataract and glaucoma. A prevention of myopia progression (PMP) will be developed and examined. This promotion program includes strategies such as a frequency following response, eye exercise, and transcutaneous electrical nerve stimulation on the prevention of myopia progression. Eye exercise defined as a computerized image led motion. The study aims to examine the effect of the implementation on the PMP.

Refractive surgery for correction of myopia is very common nowadays. However, various refractive techniques may be associated with increase in the IOP, especially during flap creation. It is assumed that marked intraoperative IOP increase lead to macular and optic disc head circulation compromise. The purpose of this study is to assess the change of macular and papillary perfusion, using optical coherence tomography angiography (OCTA) imaging of the macula and optic disc of myopic patients before and after various refractive surgery methods.

The purpose of this study is to examine the comfort of giving low concentration atropine eye drops.

Orthokeratology lens is an effective method for myopia control. This study analyzed the effects of treatment zone decentration on axial length elongation in adolescents with orthokeratology lens.

The primary objective of this PMCF investigation is to systematically collect safety and effectiveness data with the VISUMAX 800 laser in clinical daily routine SMILE use for the purpose of post market surveillance.

The purpose of this study is to determine whether improved outdoor time has an effect on the onset and progression of myopia in children.