Blue light blocking glasses filter harmful high-energy visible (HEV) blue light emitted by digital screens:

• Sources: Smartphones, computers, tablets, LED lights, TVs
• Effects of overexposure: Digital eye strain, headaches, sleep disruption, dry eyes
• Solution: CARFIA's blue light filter lenses block 40-50% of harmful blue light

You need them if:

• ✅ Spend 4+ hours daily on screens
• ✅ Experience eye fatigue or headaches after computer work
• ✅ Have trouble sleeping after evening screen time
• ✅ Work in fluorescent/LED lighting environments

Yes! All CARFIA frames support prescription blue light lenses:

• Single vision — Near or distance correction
• Progressive/Bifocal — Multi-distance vision
• Readers — +1.00 to +4.00 magnification
• Non-prescription — Style + protection without Rx

Popular frames for blue light:

• Lightweight titanium frames — All-day comfort
• Acetate frames — Durable, stylish
• Square/round/geometric — Any shape available
  
  

Proper care extends lens life:

• ✅ Use microfiber cloth (included with every CARFIA order)
• ✅ Lens spray or mild soap + water
• ✅ Store in protective case when not in use
• ❌ Avoid paper towels, tissues (scratch coating)
• ❌ No harsh chemicals (alcohol, ammonia, acetone)
• ❌ Don't leave in hot car (damages coating)

Blue light coating lifespan: 2-3 years with proper care (integrated into lens, won't peel)

Absolutely! All-day wear is recommended:

• Morning to night — Continuous protection during screen exposure
• Indoor lighting — LED/fluorescent lights also emit blue light
• Outdoor use — Safe, but sunglasses preferred for bright sunlight
• Driving — Clear lenses are safe; avoid tinted versions at night

If you don’t need prescription glasses to begin with, you don’t need a prescription for non-corrective Blue Light Glasses. Blue light filtering lenses can be applied to prescription and non-prescription glasses.

You can contact us through our contact page! We will be happy to assist you.