The right sunglasses protect your eyes (and the delicate skin around them) just as much as they improve comfort and vision. Since many people accidentally buy “dark lenses” instead of protective lenses, here’s exactly what actually matters when choosing a good pair:
1) 100% UV Protection (Most Important)
This is non-negotiable.
Look for a sticker or engraving that says:
- “100% UV protection”
- “UV400”
- Blocks UVA + UVB
Why it matters:
- Prevents cataracts, macular degeneration, pinguecula, and photokeratitis (sunburn of the cornea)
- Dark lenses WITHOUT UV protection are worse than no sunglasses — your pupil dilates and lets more UV in
👉 Brand name does NOT guarantee UV protection. Cheap pairs can be excellent if they’re UV400.
2) Lens Color (Changes What You See)
Different tints serve different purposes — this is about comfort and contrast, not protection.
Best everyday choice: Gray or brown
Avoid for daily sun: blue/pink fashion tints (they’re mostly cosmetic)
3) Polarization (Huge Comfort Upgrade)
Polarized ≠ UV protection (they are separate features)
What polarization does:
- Removes glare from roads, water, cars, concrete
- Reduces squinting & headaches
- Helps driving dramatically
- Better for dry eye & light sensitivity
Quick test: look at your phone screen and tilt glasses — if the screen darkens/blackens → polarized.
Worth it? Yes — most people notice it instantly.
4) Lens Material & Clarity
Choose based on lifestyle:
| Material | Best For | Notes |
|---|---|---|
| Polycarbonate | Everyday wear | Lightweight, impact resistant |
| Trivex | Best clarity + safety | Premium option (great for driving) |
| Glass | Sharpest optics | Heavier, can break |
| CR-39 plastic | Budget clear optics | Scratches easier |
5) Frame Fit (Protection Comes From Coverage)
Coverage matters as much as lens quality.
Good fit = less UV exposure
Look for:
- Minimal gaps at top & sides
- Lenses reaching eyebrows
- Not sitting far off cheeks
- Wrap or oversized styles are healthiest
This helps prevent:
- Peripheral UV damage
- Pterygium (“surfer’s eye”)
- Wrinkles around eyes
6) Optional Upgrades (Nice but not mandatory)
- Anti-reflective coating (reduces backside glare)
- Mirror coating (extra brightness reduction)
- Gradient lenses (reading + sun combo)
- Photochromic (light adaptive — less ideal in car)
Quick Buying Checklist
Bring this with you:
✔ UV400 / 100% UV
✔ Polarized (recommended)
✔ Gray or brown tint
✔ Good face coverage
✔ Comfortable — no slipping
✔ Optical quality (no warping when you move them)
Come see us at Lake Norman Eye Care in Mooresville, NC for a great selection of sunglasses and be ready for Spring!
