The topic of how to protect children's eye health is of great importance to many parents.

Here are some research findings and information that support the positive effects of sunlight on children's health:

1. Support in the production of vitamin D

According to the Federal Center for Health Education (BZgA), sunlight is the main source of vitamin D. This vitamin is essential for bone development and the immune system. Children who regularly participate in outdoor activities benefit from a better supply of vitamin D, which is also necessary for healthy retinal function.

2. Improve mood and stabilize sleep-wake rhythm

Studies show that sunlight stimulates the release of serotonin, a chemical messenger that elevates mood and regulates sleep—both essential for emotional stability and healthy growth in children.

3. Supporting visual development

Natural light also helps with eye development. Serotonin plays a role in this by strengthening eye function and indirectly improving sleep quality.

4. Promote fitness and immune system

Children who spend a lot of time outdoors in the sun are often more active. Moderate sun exposure supports the production of white blood cells, which strengthens the immune system.

5. Reducing the risk of myopia

Scientific studies show that natural sunlight helps counteract myopia. It promotes the release of dopamine in the eyes—a chemical that helps the eyeball maintain its normal shape. A distorted eyeball (e.g., due to elongation) is the main cause of myopia. That's why regular play and exercise in the fresh air are so important.

6. Reduce harmful screen time

Outdoor activities help children spend less time in front of digital screens. The blue light from screens can potentially impair vision, while the sun's natural light spectrum is safer and beneficial for eye health.

7. Promote visual perception

The change of brightness and colors in natural light trains the eyes and helps to better develop visual perception.

Important instructions

As beneficial as sunlight is for the eyes, excessive exposure can be harmful. Here are a few tips for protection:

• Avoid direct sunlight during the most intense hours (10am to 3pm).

• Use a sun hat or sunglasses to protect your eyes from UV rays.

• Plan about two hours of outdoor time every day to benefit from the positive effects.

Sunlight is a natural and easy way to promote children's eye health. Outdoor time should always be combined with adequate protection from UV rays to ensure your little ones grow up healthy and happy!

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