The Impact of Screen Time on Eye Health
Sitting too close to screens for extended periods can significantly affect eyesight, particularly in children. Experts warn that children aged 7 to 15 are at a heightened risk for developing myopia, or nearsightedness, due to increased screen time from devices like smartphones, tablets, and computers. According to Marcela Estrada, an assistant professor of ophthalmology at the University of California, Davis, the shift from traditional small TVs to large flat-screen TVs has changed viewing habits. While larger screens encourage viewers to sit farther away, smaller devices are often used at a much closer range, which can strain the eyes.
Understanding Myopia and Its Risks
Nearsightedness occurs when the eye's lens becomes thicker as it focuses on nearby objects, leading to a condition where distant objects appear blurry. Pediatric ophthalmologist Daniel Cyr emphasizes the importance of monitoring screen time, especially in younger children, as early detection of myopia can prevent severe forms of the condition that may lead to serious complications like retinal detachment and glaucoma. Genetic factors also play a role, with children having a higher risk if one or both parents are myopic.
Preventive Measures for Eye Health
To mitigate the risk of myopia in children, experts recommend several strategies: limiting non-academic screen time to one hour per day, ensuring screens are positioned at least an arm's length away, and encouraging outdoor activities for at least two hours daily. Regular eye checkups are also crucial, with at least one professional eye exam recommended before children enter kindergarten. These proactive measures can help safeguard children's eye health as they navigate an increasingly digital world.
