21/10/2026
Tired of heavy, thick glasses sliding down your nose? The right lens index can make a big difference.
Swipe through the guide to see how lens materials compare π
What is Refractive Index?
Refractive index measures how efficiently a lens bends light. Higher index materials bend light more efficiently, allowing prescription lenses to be made significantly thinner and lighter.
Lens Index Guide:
1.50 (Standard Plastic): Thicker and heavier, ideal for mild prescriptions.
1.56 (Mid-Index): Thinner and lighter for low-to-moderate powers.
1.60 (High-Index): Much thinner and lighter with great clarity and strength.
1.67 (Super High-Index): Very thin and light, designed for stronger corrections.
1.74 (Ultra High-Index): The thinnest and lightest option for high prescriptions.
Doctorβs Tip:
The best lens choice depends on your prescription, frame shape, and daily visual needs. Pairing a higher index with smaller, well-centered frames keeps edge thickness minimal and eliminates unwanted lens weight.
Ready for thinner, lighter lenses? Consult your eye care professional to find the ideal match for your prescription.
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