Here comes another warning for those who love to spend hours on digital screens. According to a new study, spending as little as one hour per day on tablets or smartphones could significantly increases the risk of myopia or nearsightedness.

In the systematic review and dose-response meta-analysis, a daily 1-hour increment in digital screen time was associated with 21 per cent higher odds of myopia (nearsightedness), according to the study published in JAMA Network Open.