Frame Measurements

 📐 Frame Measurements: What Those Numbers Really Mean

Every pair of glasses comes with specific measurements (usually printed on the inside of the temple arm), such as 51-18-140. Here’s what that means:

When selecting frames, there are five key measurements to consider:

Lens Width

This measures the horizontal width of one lens at its widest point. It’s often called the “eye size” by some doctors Typically 48–54mm

Nose Bridge Width

This measures the distance between the lenses, where the frame rests on your nose.

Lens Height

This measures the vertical height of a lens at its tallest point, especially important for bifocals/progressives

Frame Width

The width of the entire frame, measured horizontally from temple to temple, inside the frame.

Temple Length

This measures the length of the arms (temples) of the glasses, which rest on your ears to keep the glasses in place.

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Reading Frame Measurements

Frame measurements are typically written in millimeters, and most glasses have these measurements listed on the inside of the temple arms. The numbers are usually in the format: lens width x nose bridge width x temple length.

For example, if you see 51-18-140 inside the temple, it means:

• Lens width: 51mm
• Nose bridge width: 18mm
• Temple length: 140mm

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Important Notes for Bifocal and Progressive Lenses

• Bifocal glasses require a lens height of at least 27mm.
• Progressive glasses need a lens height of at least 29mm.

This ensures we create glasses with the proper segment height for clear vision at all distances.

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🧑🎨 Frame Types: What Style Matches Your Look?

There are three main styles of frames to choose from:

✅ Full Rim

• Most durable and protective

• Great for strong prescriptions

• Bold and classic aesthetic

✅ Half Rim

• Lighter feel with top-frame support

• Sleek and modern look

• Still provides decent durability

✅ Rimless

• Minimalist, barely-there appearance

• Lightweight and comfortable

• Must use impact-resistant lenses (like polycarbonate)

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🔧 Frame Materials: What They’re Made Of (and Why It Matters)

Different materials affect the weight, durability, and style of your glasses.

• Acetate: Lightweight, flexible, colorful, and durable

• Aluminum: Eco-friendly, corrosion-resistant, and ultra-light

• Metal: Sleek, thin, and ideal for minimalist frames

• Plastic: Affordable, fun, and comes in many colors

• Titanium: Premium, hypoallergenic, super strong and light

 

👃 Fit Tip: If your glasses constantly slide down your nose, go for adjustable nose pads or grippier temple tips!

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🧠 What to Consider When Choosing Frames

• Face shape: Some styles complement certain face shapes better (square vs. round vs. oval, etc.)

• Lens type: Some frames only work with certain prescriptions (rimless not ideal for thick lenses)

• Lifestyle: Choose more durable frames if you’re active, or ultra-lightweight ones for all-day wear

• Skin sensitivity: Go with titanium or acetate if you have allergies

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✅ Final Thoughts

Choosing the right frame isn’t just about fashion—it’s about function, comfort, and confidence.
By understanding your measurements, knowing the pros and cons of different materials, and choosing the right shape and size, you’ll end up with glasses you’ll love to wear every day.