UV400 vs Polarized: What's the Difference?

✅ UV400 – Protection From Harmful UV Rays

UV400 means the lenses block 100% of UVA and UVB rays, up to 400 nanometers.

Key Benefits:

  1. Protects eye health (prevents cataracts, macular degeneration, and sunburn of the eye)
  2. Shields sensitive skin around the eyes from UV-induced aging and cancer
  3. Essential year-round (UV rays are present even on cloudy days or in winter)
  4. Every person needs this, especially for daily sun exposure

UV400 is about safety and health.


Polarized – Reduces Glare

Polarized lenses are treated with a special filter that blocks horizontal light waves, which cause glare from reflective surfaces (like water, snow, and roads).

Key Benefits:

  1. Reduces glare while driving, skiing, boating, or at the beach
  2. Improves visual comfort – less squinting in bright light
  3. Enhances clarity and contrast
  4. Great for athletes, drivers, and outdoor lovers

Polarized is about clarity and comfort.


🔁 Summary Table: UV400 vs Polarized

Feature UV400 Polarized
Blocks UV Rays ✅ 100% UVA & UVB ❌ Not guaranteed
Reduces Glare ❌ No ✅ Yes
Eye Health Protection ✅ Major benefit ⚠️ Only from glare, not UV
Use Case Daily sun exposure Outdoor activities, driving, sports
Necessary for Safety ✅ Yes 👍 Nice to have (especially for drivers)
Available Together? ✅ Yes (best combo) ✅ Yes (if labeled)

🧠 Final Verdict:

  • UV400 is a must-have for eye protection and health.
  • Polarized is a comfort-enhancing feature for glare reduction.
  • The best sunglasses – like the ones from Deluxe Montreal – include both UV400 and polarized lenses.