Are Darker Sunglasses Better?
July 29,2021
The darkness of sunglasses lenses has nothing to do with UV protection. Dark lenses may reduce visible light for visual comfort, but must always provide 99-100% UV protection. Because ultraviolet light is invisible, the shade darkness is purely a visual preference, inferior to ultraviolet protection. Always make sure that the grade of the sunglasses is UV400.
Do I Need Reading Glasses?
July 29,2021
If you try to concentrate for a long time, this will inevitably manifest as head pain. This may be due to an outdated prescription for your glasses causing your eyes to work very hard to focus properly.
What is Blue Light?
July 29,2021
EUGENIA blue light glasses and reading glasses can filter at least 30% of potentially harmful blue light. In addition, all blue light models have 100% UVA-UVB lens protection.