Global Surge in Myopia Among Children: A Growing Concern
A recent study indicates that more than one in three children worldwide will experience myopia by 2023, with projections suggesting nearly 40% will be affected by 2050. Myopia, or nearsightedness, is characterized by the inability to see distant objects clearly, and its prevalence has seen a dramatic rise from 24% in 1990 to approximately 36% today. Researchers from Sun Yat-sen University in China analyzed data from over 5.4 million children across 50 countries, revealing alarming trends particularly in East Asia, where rates soar to 86% in Japan and 74% in South Korea.
Impact of COVID-19 on Children's Vision
The study highlights a significant uptick in myopia post-COVID-19, attributed to increased screen time and reduced outdoor activity during lockdowns. Children spent more time indoors, leading to a decline in visual acuity. The research emphasizes that environmental factors, particularly for preschool-aged children, play a crucial role in the development of myopia. As urbanization continues, children in cities show higher rates of myopia compared to their rural counterparts, with girls slightly more affected than boys.
Preventative Measures for Parents
To combat the rising tide of myopia, experts recommend that parents encourage their children to engage in outdoor activities for at least two hours a day, particularly during critical developmental ages. The “20-20-20 rule” is also advised: take a 20-second break to look at something 20 feet away every 20 minutes of screen time. Additionally, reducing homework and promoting vision screening can help in early detection and management of this growing public health issue. With proactive measures, it is possible to mitigate the risks associated with prolonged screen exposure and poor visual habits.
