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Active clinical trials for "Myopia"

Results 191-200 of 694

A Study to Assess the Safety and Efficacy of a Daily Disposable Contact Lens

Myopia

The objective of this study is to evaluate the safety and efficacy of the Bausch & Lomb daily disposable tint contact lens (Test) compared to a currently marketed daily disposable cosmetic tint contact lens (Control).

Completed12 enrollment criteria

Effect of Timolol on Refractive Outcomes in Eyes With Myopic Regression After LASIK: a Randomized...

Myopic Regression

In this randomized controlled clinical trial, we compare the effects of timolol versus placebo for treatment of myopic regression after LASIK

Completed17 enrollment criteria

Peripheral Optics in Myopia and Orthokeratology

Myopia

The primary objective of the current study is to investigate changes in peripheral refraction and aberration in children wearing orthokeratology lenses and single-vision spectacles.

Completed12 enrollment criteria

Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Moderate to High Myopia

Myopia

The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of moderate to high myopia (nearsightedness), when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.

Completed32 enrollment criteria

High Refractive Index Material 510(k)

MyopiaHyperopia

The purpose of this study is to establish the substantial equivalence of the HDS HI 1.54™ to the paflufocon C material control lenses to correct myopia and hyperopia with and without astigmatism. The purpose of the study is to profile the outcome endpoints and the patient acceptance of this Class II medical device.

Completed11 enrollment criteria

Effects of Contact Lens Care Regimens on the Corneal Epithelium

Myopia

The purpose of this study is to compare the performance of two different contact lens care solutions, specifically their affects on the front surface of the eye.

Completed28 enrollment criteria

Assessment of Bifocal and Prismatic Bifocal Spectacles for Myopia Control in Children

Myopia

To determine if the effect of near-addition lenses (bifocals) is more prominent for children with high myopia progression. To study how different subject characteristics such as age, gender, baseline degree of myopia, baseline near phoria and baseline lag of accommodation affect the efficacy of bifocal lens wear in myopic children. To investigate the effect of incorporating near base-in prisms along with the near-addition lenses (prismatic bifocals) on myopia progression in myopic children.

Completed9 enrollment criteria

Ranibizumab for the Treatment of Choroidal Neovascularisation (CNV) Secondary to Pathological Myopia...

Choroidal Neovascularisation

This study is designed to provide efficacy and safety data in patients with choroidal neovascularisation (CNV) secondary to myopia using an individualized as-needed (PRN) dosing schedule. Eligible patients who have provided written agreement to take part in the study will receive an intravitreal (into the study eye) injection of ranibizumab 0.5mg. Following eye examinations and tests at monthly clinic visits, the study doctor will repeat the injections on a monthly basis as required for an additional 11 months, in accordance with specified retreatment criteria. Patients will be in the study for approximately 12 months and will visit the hospital clinic 14 times over that period. The main assessments will include visual acuity tests, eye examinations, optical coherence tomography (OCT) to assess retinal thickness, fundus photography and fluorescein angiography (FA), measurement of intraocular pressure, blood pressure and pulse measurements and completion of health-related questionnaires'.

Completed13 enrollment criteria

Effect of Axial Length of the Globe on Retinal Nerve Fibre Thickness

Myopia

the goal of this obsrevational study is to learn about retinal nerve fibres and if their numbers changed with axial length of the globe or not. the main question to answer is there is effect of long axial length on the thickness of the retinal nerve fibers participants will be asked to: measure the axial length with ultrasound measure the thickness of retinal nerve fibers with optical coherence tomography

Not yet recruiting7 enrollment criteria

Low Concentration Atropine for Myopia Progression in School Children

Myopia Progression

Myopia is the leading cause of blindness in Taiwan. The younger children with myopia, the higher risk of high myopia in later life and complications such as retinal detachment and maculopathy will occur. We have reported the low concentration of atropine (0.05%) with the effect on retarding the myopia progression. Recently the 0.01% atropine was also reported effective and with less visual side effects such as mydriasis. The aim of this study is to compare the efficacy in controlling myopia progression and visual side effects of 2 low concentration of atropine(0.05% vs 0.01%) in children aged 6-12 years with myopia of at least -0.5 diopters (D) and astigmatism of -1.50 D or less.

Completed2 enrollment criteria
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