High Index Lens Bangladesh: 1.56 vs 1.60 vs 1.67 vs 1.74 Comparison Guide
Introduction
If you have a high prescription, you likely struggle with thick, heavy lenses that look like the bottom of a bottle. This often makes glasses uncomfortable and unattractive. The solution? High-index lenses. They are the perfect way to get thinner, lighter lenses without compromising your vision.
What is a High-Index Lens?
A standard lens has a refractive index of 1.50. High-index lenses have higher refractive indexes, ranging from 1.60, 1.67, up to 1.74.
Simply put: The higher the index, the more efficiently the lens bends light, allowing the lens to be much thinner for the same power.
Benefits of High-Index Lenses
- Thinner Profile: Significantly reduces the thickness of lenses for high prescriptions.
- Lighter Weight: Less weight means more comfort for your nose and ears, especially during long hours of wear.
- Aesthetics: Your eyes look natural through the glasses, avoiding the “magnified” or “minimized” look.
- Versatility: They fit perfectly into modern, thin-framed eyewear.
Who Needs High-Index Lenses?
- People with a power of -4.00 or higher (Myopia).
- People with a power of +3.00 or higher (Hyperopia).
- Those with high Astigmatism (Cylinder power).
- Anyone tired of the weight and bulk of traditional lenses.
Index Guide: Choosing the Right Thickness
| Index | Power Range | Thinness Level |
| 1.50 (Standard) | Up to -4.00 | Normal |
| 1.60 | -4.00 to -6.00 | 20% Thinner |
| 1.67 | -6.00 to -8.00 | 35% Thinner |
| 1.74 | Over -8.00 | 45% Thinner |
High Index Lens Comparison: 1.56 vs 1.60 vs 1.67 vs 1.74
| Index | Thickness Reduction | Weight | Best Prescription Range | Price Range (BDT) |
|---|---|---|---|---|
| 1.56 (Mid-Index) | 10% thinner than 1.50 | Light | -2.00 to -4.00 | ৳800 – 1,200 |
| 1.60 (High-Index) | 20% thinner than 1.50 | Lighter | -4.00 to -6.00 | ৳1,500 – 2,500 |
| 1.67 (Super High-Index) | 35% thinner than 1.50 | Very Light | -6.00 to -8.00 | ৳2,500 – 4,000 |
| 1.74 (Ultra High-Index) | 45% thinner than 1.50 | Ultra Light | -8.00 and above | ৳4,000 – 6,500 |
Frequently Asked Questions (FAQ)
Q: Can I add Anti-Blue or Photosun coatings to high-index lenses?
A: Yes! High-index lenses are fully compatible with all modern coatings like Anti-Blue, AR, and Photosun.
Q: Are high-index lenses fragile?
A: No. They are often made with impact-resistant materials like polycarbonate, making them quite strong.
Q: Where can I get high-index lens Bangladesh thin lens service?
A: OpticoBD specializes in customizing high-index lenses tailored to your prescription.
Conclusion
Having a high prescription doesn’t mean you have to deal with heavy, unattractive glasses. With high-index technology, your glasses can be thin, light, and stylish.
