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Myopia Clinical Trials

A listing of Myopia medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.

RESULTS

Found (17) clinical trials

The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study

The Orinda Longitudinal Study of Myopia (OLSM) was started in 1989 to investigate normal eye growth and the development of myopia in over 1,200 school-aged children to date. Beginning in 1997, three parallel study phases are being conducted. Phase 1 investigates additional factors that may predict the onset of juvenile ...

Phase N/A

Ocular Imaging With Spectral Domain Optical Coherence Tomography

Assessment of macular thickness is important for the treatment and follow-up of a variety of ocular diseases. The introduction of optical coherence tomography (OCT) has enabled clinicians to reliably detect small changes in macular thickness and to quantitatively evaluate the efficacy of different therapeutic modalities. In this study using the ...

Phase N/A

Intrastromal Correction of Ametropia by a Femtosecond Laser

This study evaluates the intrastromal correction of ametropia with a femtosecond laser made by 20/10 PERFECT VISION. This laser generates a beam of ultrashort, infrared pulses which enables very precise cuts in the cornea. By these cuts lamellae of the cornea are separated locally, and in the consequence the curvature ...

Phase

A Prospective Safety and Effectiveness Study of the 500 Hz Technolas Perfect Vision Excimer Laser in Asian Eyes Using LASIK

This clinical study has been planned to evaluate the safety and effectiveness of the excimer laser treatment algorithms Proscan, Zyoptix and Supracor of the 500 Hz laser system for ametropia and/or presbyopia when performed on the cornea of virgin eyes.

Phase

Study of Myopia Prevention in Children With Low Concentration of Atropine

The prevalence rate of myopia is rising rapidly in several Asian countries. A prevalence survey conducted in 1995 of 11178 school children in Taiwan were 12 percent for six year old and 84 percent for teenagers 16 o 18 years. Among them, twenty percent were high myopes. While in the ...

Phase

Ocular Response Analyzer Assessment of Intraocular Pressure and Corneal Biomechanical Properties in Myopic and Anisometropic Patients Under Atropine Treatment

Our study has three parts has three parts, and the main aim of the study is to find out if corneal hysteresis was associated with myopia or even a predictor of myopia poor control predictor: - Part 1 of our study: patients with anisomeropia whose spherical equivalent refraction as measured ...

Phase N/A

Corrected Measurement of the Retinal Nerve Fiber Layer Thickness by Optic Disc Configuration With the Cirrus HD OCT

Finding the localized retinal nerve fiber layer (RNFL) defect and measuring the RNFL thickness are two main issues for early glaucoma detection. A recently developed imaging device, the Cirrus HD OCT, offers more detailed informations about retina architecture including optic nerve head. To calculate the RNFL thickness, the software of ...

Phase N/A

Efficacy of Retinal Nerve Fiber Layer (RNFL) / Retinal Thickness Ratio by Cirrus OCT Utilizing Spectral -Domain Technology as a Diagnostic Predictor of Glaucoma

Glaucoma is presumed to be an axonal disease which starts at the lamina cribrosa. This assumption has led to the monitoring of the retinal nerve fiber layer thickness for the diagnosis and monitoring of progression of glaucoma. However, varying disc size, myopia and tilted discs affect the thickness of the ...

Phase N/A

Advanced Surface Ablation (ASA) vs Laser-Assisted In Situ Keratomileusis (LASIK)

Excimer laser vision correction (LVC) is a widely used procedure to correct nearsightedness, farsightedness, and astigmatism by reshaping the surface of the eye (cornea). Laser-Assisted In Situ Keratomileusis (LASIK) and Advanced Surface Ablation (ASA) and are techniques currently used to prepare the cornea for Excimer LVC. This review is intended ...

Phase N/A

Compare Anterior Chamber Biometry in Healthy and Post-LASIK Patients

Accommodation is an action that enables projections of both distant and near objects to be brought into clear focus on the retina through changing of diopteric power of crystalline lens. Although the exact mechanism of accommodation remains inconclusive, most authors agree that contraction of ciliary muscle plays a pivotal role.1, ...

Phase N/A