To help you make the best choice for comfort and fit, here’s how to understand eyeglass frame sizes and materials:

Understanding Eyeglass Frame Numbers

You’ll usually find numbers printed on the inside of the frame arm, such as:
54-20-140
These refer to three key measurements:

• Eye Size (54mm): The horizontal width of each lens.
• Bridge Width (20mm): The distance between the two lenses; this affects how the frame sits on your nose.
• Temple Length (140mm): The length of the arms that go behind your ears; this ensures the frame stays securely in place.

Choosing the right frame size ensures proper vision alignment, stability, and long-term comfort.

Best Frame Materials: Which One Suits You?

The ideal frame material depends on your lifestyle, comfort needs, and style preferences. Here are some popular options:

• Titanium
  Lightweight, strong, rust-resistant, and ideal for those with metal allergies.
• Acetate
  Stylish, lightweight, and available in a wide range of colors and patterns. Very comfortable to wear.
• Metal (Stainless Steel / Aluminum)
  Durable and modern-looking, though typically heavier than titanium.
• TR-90 (Plastic)
  Flexible, lightweight, and impact-resistant—perfect for sports or everyday use.