View clinical trials related to Refractive Error.
Filter by:The purpose of this study is to evaluate the safety and efficacy of FID 120947A in soft contact lens wearers of Japanese ethnicity.
The purpose of this study is to compare the lens fit characteristics, specifically lens centration, of ACUVUE® OASYS® 1-DAY (AO1D) contact lenses and DAILIES TOTAL1® (DT1) contact lenses.
The purpose of this study is to compare DAILIES TOTAL1® (DT1) to 1-DAY ACUVUE® TruEye® (TE) for Investigator-rated successful lens centration in Japanese population.
The purpose of this study is to evaluate AIR OPTIX® plus HYDRAGLYDE® (AOHG) contact lenses compared to AIR OPTIX® AQUA (AOA) contact lenses in overall lens fit.
The purpose of this study is to evaluate the performance of two commercially-available silicone hydrogel contact lenses in normal and low humidity environments after at least 7 days of wear.
The purpose of this study is to evaluate the incidence of ocular discomfort device-related adverse events with DAILIES TOTAL1® with UV Absorber (DT1 UV) contact lenses compared with current DAILIES TOTAL1® (DT1) contact lenses.
Myopia has emerged as a major health issue in east Asia, because of its increasingly high prevalence in the past few decades (now 80-90% in school-leavers), and because of the sight-threatening pathologies associated with high myopia, which now aff ects 10-20% of those completing secondary schooling in this part of the world. Similar, but less marked, changes are occurring in other parts of the world. The higher prevalence of myopia in east Asian cities seems to be associated with increasing educational pressures, combined with life-style changes, which have reduced the time children spend outside.
The Baltimore Reading and Eye Disease Study (BREDS) is a two year study to determine the prevalence of vision problems in an early school age population with reading difficulty. Comprehensive vision and reading tests will be administered to 400 students at participating schools in the Baltimore City Public School system. A secondary goal is to examine the impact of vision treatment on reading performance. Children with refractive error or convergence insufficiency will be provided treatment free of charge. The investigators will evaluate the impact that the treatment has on vision function and reading performance.
The purpose of this study is to evaluate the tear film evaporation of symptomatic soft contact lens wearers in the absence of contact lens wear and after at least 8 hours of contact lens wear.
The purpose of this study is to evaluate cholesterol sorption by Air Optix® Aqua lenses compared to ULTRA lenses after 30 days of wear.