What is a Thin Hi-Index lens?
The lens index tells you how well a lens bends light. High-index lenses bend light more effectively, so they can be thinner, lighter, and more comfortable to wear.
What makes them exceptional:
- Light & Thin Profile – Hi-index lenses are thin and lightweight, providing a sleek appearance and comfortable fit.
- Clean Frame Finish – Slimmer edges make these lenses compatible with a wider range of frame styles, including rimless and semi-rimless designs.
- Natural Appearance – These thinner lenses create a more natural look by reducing the "bug-eye" or "magnified" effect often seen with standard lenses.
- No Color Fringing – Hi-index lenses deliver sharper, clearer vision by minimizing chromatic aberration, ensuring colors remain true and edges stay crisp.
See the Difference
| Lens Package | VionGlasses Hi-Index | Polycarbonate | Other Thin lens |
|---|---|---|---|
| Lightweight | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ |
| Color Fringing | None (Pure) | Chromatic Blur | None |
| Long lasting | Durability | Easily worn | Easily worn |
| Sharp to the edges | Clarity | Edge distortion | Distortion(High Rx) |
| Natural / Slim | Appearance | Bulky / Bug-eye effect | Bulky(High Rx) |
| RX Range | Up to + / - 10.00 | Up to + / - 3.00 | Up to + / - 5.00 |
| Additional Cost | $0 (1.60) | $20~50+ | $60~90+ |
VionGlasses Hi-Index Lenses by Thickness
We offer three levels of hi-index technology, automatically optimized for your prescription
| Lens Index | 1.60 (X2) | 1.67 (X3) | 1.74 (X4) |
|---|---|---|---|
| Thickness | 22% thinner | 35% thinner | 47% thinner |
| Prescription power | +/- 3.00 | +/- 6.00 | +/- 10.00 |
| Price | Included | +$20 | +$40 |