Eyeglasses Sizing Guide

1. Prescription Glasses Size Guide

Prescription glasses must fit precisely to ensure proper optical alignment and reduce eye strain.

Key Measurements

• Lens Width: 40–60mm (standard: 50–54mm)

• Bridge Width: 14–24mm (asian fit: 18–22mm)

• Temple Length: 135–155mm (standard: 145mm)

• Frame Height: 30–50mm (≥38mm recommended for progressive lenses)

How to Choose?

✅ Narrow Face: Lens width ≤50mm, bridge ≤18mm
✅ Average Face: Lens width 50–54mm, bridge 18–20mm
✅ Wide Face: Lens width ≥54mm, bridge ≥20mm

Tip: Progressive lenses require taller frames (≥38mm) for full visibility.

2. Sunglasses Size Guide

Sunglasses prioritize style and UV protection, often featuring larger frames than prescription glasses.

Key Measurements

• Lens Width: 50–65mm (oversize styles: 70mm+)

• Bridge Width: 16–25mm (aviators: narrow, square frames: wider)

• Temple Length: 140–160mm (sport styles may be longer)

• Frame Height: 40–60mm (cat-eye & oversized styles)

Popular Styles & Fits

Aviators: Lens width 55–60mm, bridge 16–18mm
Square Frames: Lens width 58–65mm, bridge 20–22mm
Sports Sunglasses: Lens width 60mm+, non-slip temples

Note: Oversized sunglasses may slip; measure your face width (temple-to-temple) before buying.

3. Kids’ Glasses Size Guide

Children’s frames should be lightweight, durable, and adjustable for growth.

Key Measurements

• Lens Width: 40–50mm (toddlers: 40–45mm, older kids: 45–50mm)

• Bridge Width: 14–18mm (adjustable nose pads recommended)

• Temple Length: 120–140mm (flexible or adjustable temples)

• Frame Height: 25–40mm (avoid obstructing vision)

Buying Tips

Toddlers (3–6): Flexible TR90 material, spring hinges, strap-friendly temples
School-Age (7–12): Adjustable nose pads, lens width 45–50mm
Teens (13+): Near-adult sizes, lightweight materials (e.g., titanium)

Safety Tip: Avoid sharp edges; choose silicone temple tips for grip.

 

 How to Measure Your Ideal Glasses Size

1. Measure Face Width: Use a ruler to check the distance between your temples.

2. Check Existing Frames: Look for sizing numbers on the temple (e.g., "52-18-145" = lens width 52mm, bridge 18mm, temple 145mm).

3. Try Before Buying: Check brand sizing charts or opt for free returns.

The right size ensures comfort and optimal vision. Now you’re ready to shop with confidence!