A study has found a link between lead exposure and the development of cataracts in older men, adding to the list of harmful effects blamed on the heavy metal. To measure the men’s long-term, cumulative exposure to lead, the researchers analyzed their shin bones, where lead is believed to remain for up to 20 years. The men with the highest lead levels were found to be 2.7 times more likely to have cataracts than those with the lowest levels.
