My child (just 9 years old) does not wear these glasses but they will be little soon. I would recommend them for kids under 10 or much smaller older kids. The glasses absolutely block blue light and I looked at them in many different scenarios for comparison. There is a significant difference between enabled and disabled.
Gaming Mouse OKLICK 795G GHOST Gaming Optical Mouse Black USB, black
16 Review
Pro Acme Unbreakable Kids Blue Light Glasses π for Clear Vision during Computer Gaming and TV Screen Time
11 Review
Anti-Eye Strain Headache Blue Light Blocking Glasses 3-Pack by MEETSUN with UV400 Lens for Better Sleep and Computer Reading
11 Review
π Xiaomi Adult Anti-Blue Goggles Pro - Computer Glasses, Non-Diopter, White Frame, Yellow Lens
14 Review