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How Normal Vision Develops in Childhood

Normal vision develops rapidly during the first 2 years of life and continues more slowly until about age 9. During that time, a child's eyes and brain learn how to work together to see. Practice is the most important part of this learning process. Constant use of both eyes gives a child's eyes and brain the practice they need to develop normal eyesight.

If there is a problem with vision in one eye, it disrupts this learning process, and the brain stops developing normal vision for that eye. This can lead to amblyopia.

Recommended Related to Children

Lead in Toys: Could It Be Lurking in Your Home?

When Eleilia Preston gave birth to her first child, the last thing she worried about was lead in toys. The stay-at-home mom, who describes herself as "over-the-edge careful," made sure that little Megan was always within eyesight.  She documented each bite her daughter ate and washed all her toys, several times a week. That's why Preston, 29, was so shocked when doctors diagnosed the toddler with lead poisoning. At 21 months, Megan far exceeded every developmental milestone for her age group...

Read the Lead in Toys: Could It Be Lurking in Your Home? article > >

By Healthwise Staff
Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer Christopher J. Rudnisky, MD, MPH, FRCSC - Ophthalmology
Last Revised June 24, 2011

WebMD Medical Reference from Healthwise

Last Updated: June 24, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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