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.



Author: Robin Parks, MS Last Updated: July 17, 2007
Medical Review: Michael J. Sexton, MD - Pediatrics
Christopher J. Rudnisky, MD, FRCSC - Ophthalmology

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