Ultimate Eyeglass Guide｜Step-by-Step Tips for Choosing Lenses & Frames

🌟 1. How to Choose Lens Brands?
✅ Luxury budget? Go for Zeiss, Essilor, Hoya, or Nikon—top-tier optical performance!
✅ Budget-conscious? Try Mingyue, Chemi, Sightnight, Conant, or Wanxin—affordable and reliable!
✨ Hidden gem: Japanese Lenses : You can order here

🔬 2. Lens Refractive Index Guide:

| 0-300° | 1.56 (upgrade to 1.60 for thinner edges)
| 300-400° | 1.60
| 400-700° | 1.67 or 1.71
| 600°+ | 1.71 or 1.74 (must for high prescriptions)

⚠️ Higher index = thinner lenses, but lower Abbe number. Balance clarity vs. thickness!

👓 3. Frame Materials & Sizing Formula
🔧 Material ranking: Pure titanium > β-titanium/titanium alloy > TR/plastic steel > alloy.
💡 Lightweight fans: Pure titanium = ultra-light & corrosion-resistant. TR90 = budget king (<¥100)!

📏 Frame Size Formula:
(Lens width + bridge width - PD) ÷ 2 = Decentration
👉 Ideal decentration ≤3mm. For mid-high prescriptions, follow this:

• PD <60mm: Choose frames <50mm

• PD 60-64mm: 50-53mm

• PD >64mm: Larger frames (but avoid extremes).

🚫 4. Pitfalls to Avoid!
1️⃣ No obscure brands: Reject brands with no online presence!
2️⃣ Beware white-label products: Demand original packaging to verify authenticity!
3️⃣ Bargain hack: Zeiss/Essilor lenses at 30-50% off—never pay full price!
4️⃣ Anti-counterfeit checks: Keep packaging! Scan QR codes to verify—avoid disputes later.

📌 6. Pro Tips:
⚠️ Mingyue lenses: Only choose PMC series. Chemi: U2/U6 only!
⚠️ Essilor: Skip A4 series. Zeiss: Prioritize SmartLife, Digital, or Precision!
💡 Keep receipts + packaging for hassle-free after-sales service!

🔥 Bookmark this guide to save money! 👀 Share with fellow glasses-wearers!

If you dont understanding, dont worries, you can contact our customer service to choose for you: service@cinily.net