Understanding the Impact of Modern Screens
Most of us spend anywhere from 6 to 10 hours a day gazing into smartphones, laptops, and LED displays. While screens have become indispensable for work and leisure, the high-energy visible (HEV) blue light they emit poses unique challenges to visual comfort.
What is Blue Light?
Blue light sits between 380nm and 500nm on the light spectrum, possessing the shortest wavelengths and highest energy within visible light. Unlike UV rays which primarily affect the cornea and outer eye, blue light penetrates deep into the retina.
Common Symptoms of Digital Eye Strain
- Tired, burning, or dry eyes after prolonged computer sessions
- Frequent headaches radiating from the temples
- Blurred vision and difficulty focusing on distance objects
- Disrupted sleep cycles due to suppressed melatonin production
How Chashma 99 BlueShield Lenses Help
Our proprietary BlueShield coating selectively filters out harmful 400nm-455nm blue wavelengths while allowing beneficial turquoise light through, preserving true color perception without heavy yellow tinting.
