My 5-year-old son has 2 diopters of myopia. Is his condition dangerous, and how can I prevent his prescription from increasing rapidly? (Thanh Thao, 28, Tay Ninh)

Staying up late and prolonged screen time on computers and phones not only increase the risk of myopia in young people but also cause dry eyes, eye strain, and accelerate the onset of various eye conditions.

Continuous phone use without rest, viewing in the dark, or at close range can accelerate myopia progression.