💡 What Are High-Index Lenses?
High-index lenses are made from specially engineered optical materials that bend light more efficiently, allowing the same prescription to be made thinner, lighter, and more elegant.
Standard lenses have an index of refraction around 1.50. High-index options—1.60, 1.67, and 1.74—offer a slimmer look as the index increases.
✨ Why Do Some Lenses Look Thicker?
Lens thickness depends on:
1️⃣ Your prescription strength – The higher the prescription, the thicker the edges.
2️⃣ Lens index – Higher index materials bend light more, so less curvature (and thickness) is needed.
In short, for high myopia, switching to high-index lenses can significantly reduce edge thickness and weight.
✅ Key Benefits
Thinner & Lighter: Up to 40% thinner than standard lenses.
Better Appearance: Reduces the “bulging edge” effect, creating a more natural look.
Ideal for Slim Frames: Perfect match for metal or rimless eyewear.
Durable & Strong: Denser materials resist warping and maintain shape longer.
⚠️ Things to Know
Higher Cost: More advanced materials and production.
More Reflection: The higher the index, the more light it reflects—add an anti-reflective coating for best clarity.
Choose the Right Index: Higher isn’t always better; your optician will suggest the best match for your prescription and frame.
🙋♂️ Best For
People with stronger prescriptions (-4.00D and above).
Professionals who value a clean, refined look.
Anyone seeking lighter, more comfortable eyewear.
High-index lenses strike the perfect balance between clarity, thinness, and style.
They are a smart upgrade for anyone who wants high performance without sacrificing comfort or aesthetics.