The strongest protective factor to prevent this is simply being outside in daylight, playing outside and exercising. “We recommend being outside for two hours a day from a young age. The light intensity is much higher outside than inside. This means that the eye grows less, which has a growth-inhibiting effect. Dopamine ensures that the length of the eyeball slows down.”
In addition to the light outdoors, it is also important not to stare at a screen for long periods of time. “We cannot ban screens, but it is important to use them in moderation. For young children, it is also important that they are more than 30 cm from the eyes.