Childhood Myopia Surges Globally as Screen Time and Urban Lifestyles Take Over

Myopia, also known as nearsightedness, is becoming increasingly prevalent among children worldwide. Over the past 20 years, cases have doubled or even tripled in many regions. The condition, which causes distant objects to appear blurry, now affects over half of all children in some areas—up from around 25–30% two decades ago.

The sharpest increases have been observed in East Asia, where up to 80–90% of teenagers in countries like China now have myopia. South Korea and Singapore show similar trends, followed by Southeast Asia and urban parts of Europe and North America. Experts attribute this rise to modern lifestyles: more time on smartphones and tablets, long hours reading, and far less outdoor activity.

Genetics also play a significant role. Children with nearsighted parents face a higher risk of developing the condition themselves. When myopia begins early in childhood, it often worsens over time. Severe cases in adulthood can lead to retinal detachment, glaucoma, or cataracts.

Preventing progression is possible with simple changes. Spending at least two hours outdoors daily exposes the eyes to natural light, which helps regulate growth and slows myopia. Proper use of electronic devices—taking breaks and holding screens at a distance—also reduces strain. Medical options include special eyeglass lenses, contact lenses with peripheral defocus technology, and low-dose atropine eye drops. Regular eye exams in childhood allow early detection and timely treatment.

The global surge in childhood myopia underscores the need for early action. Lifestyle adjustments and medical interventions can help control its progression. Without intervention, the risk of severe eye conditions in later life remains a growing concern.