“Children are born with an underdeveloped visual system that grows with them. As part of normal infant vision development, newborns can see objects only up close, and toddlers and preschoolers commonly are farsighted. Also, some school-age children need eyeglasses.

Throughout their growing years, children are visually stimulated. Nothing stimulates a child’s vision more easily than a toy.”

Bailey, Gretchyn. “Toys and Eye Safety.” All About Vision. N.p., Nov. 2015. Web. 6 Oct. 2015.

Read more: Do Your Kids Own Toys That Are Unsafe for Eyes