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.
How this information was developed to help you make better health decisions.