Clinical Trial: First-Sight Refractive Error Correction: Direct Comparison to Autorefraction Results in Children 7 to 18 Years of Age

Study Status: Completed
Recruit Status: Unknown status
Study Type: Observational

Official Title: Proof of Concept Study for First-Sight Refractive Error Correction: Direct Comparison to Autorefraction Results in Children 7 to 18 Years of Age

Brief Summary: Proof of concept study to compare the best corrected visual acuity obtained via First-Sight lenses with the autorefraction in children.

Detailed Summary:

Uncorrected refractive error is a frequent cause of visual impairment in children most prevalent in rural or underserved areas in the global population. In 2006, the World Health Organization released global estimates on visual impairment. According to their findings, there are approximately 314 million people in the world whose vision is impaired. Of this population 90% of those individuals live in developing countries and 153 million cases are believed to be due to uncorrected refractive error. Children, ages five to 15 years, suffer from refractive errors (mostly myopia, hyperopia, and astigmatism) that can be improved to normal vision. It is estimated that by 2020, approximately one third of the world's population (2.5 billion) will be affected by myopia alone14. The prevalence of refractive error in school-aged children is significant especially the impact on a child's life in terms of education and development.

Studies in Western populations have collectively shown that myopia occurs <5% in children 8 years and younger. Sampling studies in other countries worldwide have shown that there is higher prevalence of myopia among Southeast Asia children and less among Australian children.1-11 Refractive error study in Eastern Nepal found 2.9% of children had vision of 20/40 or worse of which 56% of the 200 eyes tested was caused by refractive error due to myopia, hyperopia and astigmatism.12

The challenge is to determine the most effective and accessible method of detecting refractive error and dispensing spectacles for better vision. Children who have access to clinical setting typically receive prescriptive spectacles to correct refractive errors. However, in underserved areas where standard eye care may be absent, children are unable to receive the benefits of normal or near normal vision. The challenge is to determin
Sponsor: University of Nebraska

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Information By: University of Nebraska

Dates:
Date Received: June 1, 2011
Date Started: June 2011
Date Completion: December 2012
Last Updated: June 13, 2012
Last Verified: June 2012