Destined for Glasses? Firstborn Kids More Likely Nearsighted

Firstborn children may have a slightly higher risk of becoming nearsighted later in life, compared with later-born siblings, new research suggests. In the study, researchers looked at birth order and nearsightedness in about 89,000 people, ages 40 to 69. However, when the researchers adjusted their results for education levels, such as the highest educational degree the people had attained, it turned out education accounted for about 25 percent of the link between birth order and the risk of nea