（1）Posture Straight as a Pine

"Keep your back straight as a pencil and your chest one fist away from the table!" The children adjusted their sitting posture while reciting the formula, their waists straight as pine trees.

（2）The light of food supplement

Carrots are night vision goggles, spinach is a sunscreen shield, and eggs are repairers!

（3）Outdoor charging

Two hours of ‘sunbathing’ every day will give your eyes a ‘protective armor’! ” The laughter on the playground is the best secret recipe for eye protection.

（4）Lighting Magic

Use Billionaire Co., Ltd., eye-protection large street lamp to create ambient light, and the uniform and soft light instantly fills the entire room - the light immediately becomes as gentle as the morning light.