SmartSellTM - The New Way to Sell Online

Sell Your Old Stuff for Cash. It's Easy & Free to List. Get Started Now.

Screening for Visual Impairment in Children Ages 1-5 Years

In the United States, common visual problems in young children include refractive error, strabismus, and amblyopia. Vision impairment related to these conditions can reduce quality of life, function, and school performance. In addition, amblyopia and strabismus can affect normal visual development at a critical period of visual development, resulting in irreversible vision loss. Identification of vision problems prior to school entry could help identify children who might benefit from early interventions to correct or improve vision. The U.S. Preventive Services Task Force (USPSTF) issued an updated recommendation on screening for visual impairment in preschool-aged children in 2004. Since 2004, additional evidence on screening programs and various screening modalities has become available. In 2009, the USPSTF commissioned a new evidence review in order to update its recommendation. The purpose of this report is to systematically evaluate the current evidence on screening for vision problems in preschool-aged children. The most common causes of vision impairment in children are: 1) amblyopia and its associated ("amblyogenic") risk factors, 2) strabismus not associated with amblyopia, and 3) refractive error not associated with amblyopia. Amblyopia is a disorder characterized by abnormal processing of visual images in the brain during a critical period of vision development, resulting in a functional reduction of visual acuity.4 It is associated with conditions that interfere with normal binocular vision, such as strabismus (ocular misalignment), anisometropia (a difference in refractive power between the two eyes), bilateral refractive error, and media opacity (such as cataracts) or other blockage of the visual pathway (such as ptosis or eyelid drooping). Vision impairment associated with amblyopia is not immediately correctable with use of refractive lenses. Standardized definitions for amblyogenic risk factors are available and have been widely adopted. Strabismus is the most common risk factor for amblyopia, but can inhibit development of normal binocular vision even in the absence of amblyopia. Refractive error is commonly due to myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Unlike vision impairment associated with amblyopia, simple refractive error is correctable with use of appropriate lenses, and is not thought to affect normal visual development. Mild hyperopia is normal in young children, who usually achieve normal (20/20) adult visual acuity between the ages of 3 to 7 years.
Product Details
Look for similar items by category
Home » Books » Science » Medicine » Research
People also searched for
How Fishpond Works
Fishpond works with suppliers all over the world to bring you a huge selection of products, really great prices, and delivery included on over 25 million products that we sell. We do our best every day to make Fishpond an awesome place for customers to shop and get what they want — all at the best prices online.
Webmasters, Bloggers & Website Owners
You can earn a 5% commission by selling Screening for Visual Impairment in Children Ages 1-5 Years: Systematic Review to Update the 2004 U.S. Preventive Services Task Force Recommendation: Evidence Synthesis Number 81 on your website. It's easy to get started - we will give you example code. After you're set-up, your website can earn you money while you work, play or even sleep! You should start right now!
Authors / Publishers
Are you the Author or Publisher of a book? Or the manufacturer of one of the millions of products that we sell. You can improve sales and grow your revenue by submitting additional information on this title. The better the information we have about a product, the more we will sell!
Item ships from and is sold by, Inc.
Back to top