Active clinical trials for "Refractive Errors"

A thorough ophthalmic examination of a child must include a refraction and this is often done with cycloplegia. In our study, we aim to determine at which age group a non-cycloplegic refraction technique closely correlates with a cycloplegic refraction and hence, would obviate the need for cycloplegic refraction in our routine clinical practice.

To identify vision-screening tests that can accurately predict those three- and four-year old preschoolers who would benefit from a comprehensive vision examination because of signs of amblyopia, strabismus, and/or significant refractive error.

The development and validation of a concise, practical, on-line, self-administered, self-archiving, and self-scoring PRO questionnaire for routine clinical use in refractive surgery is the primary study objective. Secondary objectives are to gather outcome data from patients before and after surgery in each of the following domains comprising key elements of vision related quality of life: spectacle dependence; quality of vision; eye comfort; freedom; emotional well-being; and overall satisfaction with the results of surgery. Patients undergoing refractive surgery at Moorfields Private Outpatient Clinic will be enrolled in the study in the validation phase.

The purpose of this study is to evaluate Clear Care® Plus compared to PeroxiClear™ for mean residual peroxide in used lens cases collected at Day 30 after neutralization at recommended storage time.

The purpose of this study is to evaluate the lipid uptake, wetting characteristics, and visual performance of AIR OPTIX® AQUA and ACUVUE® OASYS® with HYDRACLEAR® contact lenses when used in conjunction with two contact lens care systems.

The aim of this study is to test the efficacy of the First-Sight refractive kit designed to provide refractive correction of simple hyperopia, myopia and astigmatism with autorefraction.

The objective of this study is to compare the ease of removing two daily disposable soft contact lenses off the eye.

The purpose of this study was to measure front surface deposits on contact lenses when worn for ten hours.

The purpose of this study is to assess long term performance and safety of AONDA in a real world setting when worn as daily wear or continuous wear for vision correction. This study will be used to support AONDA's marketability in Europe and other locations.

The primary objective of this study is to evaluate the axis orientation of LID226397 toric contact lenses.