Materials For Myopia Eyeglass Frames

The choice of materials for myopia eyeglass frames needs to comprehensively consider factors such as comfort, durability, weight, anti-allergy properties, and budget. According to authoritative public information, mainstream materials can be categorized as follows:

Common Frame Materials and Characteristics

Pure Titanium / β-Titanium Alloy
Advantages: Extremely lightweight (density about 4.5g/cm³), corrosion-resistant, high strength (twice that of steel), good biocompatibility, unlikely to cause skin allergies, known as "space metal".

Suitable for: People with high myopia, sensitive skin, or long-term wearing needs.

TR90 (Memory Polymer Material)
Advantages: Excellent flexibility (can bend over 180°), extremely lightweight (about 1/3 of ordinary acetate), impact-resistant, anti-slip design suitable for sports.

Suitable for: Sports, children, daily commuting.

Acetate (Cellulose Acetate)
Advantages: Good texture, rich colors, thick edges that can hide the edges of high-prescription lenses, maintains shape, good breathability.

Metal Alloys (e.g., Monel, High-Nickel Alloys, Nickel Silver)
Advantages: Lower cost, easy to process, moderate strength.

Suitable for: Budget-conscious individuals, non-allergic people.

Mixed Materials (Metal + Plastic)
Advantages: Combines lightweight and stability, flexible design.

Suitable for: Those pursuing both fashion and functionality.

Selection Recommendations (Based on Needs)

High Myopia (≥ -6.00 D): Prefer Titanium or TR90 frames, paired with 1.74 high-refractive-index lenses to reduce weight and edge thickness.

Sensitive Skin / Allergy-Prone: Recommend pure titanium or β-titanium, avoid nickel alloys.

Children / Teenagers: Recommend TR90 or memory titanium, both flexible and impact-resistant.

Daily Business / Fashion Needs: Consider acetate or pure titanium, balancing texture and lightness.