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Standard vs High Index Lenses: Which Is Best for Your Prescription?

By admin on May 8, 2025

Discover the best lenses for your vision at 2020Glasses.co.uk

When choosing new glasses, one of the most important decisions is selecting the right lens material. At 2020Glasses.co.uk, we offer two main types of lenses: standard lenses and high-index lenses. But how do you know which option is right for you? Here’s everything you need to know about the difference between standard and high-index lenses.

What Are Standard Lenses?

Standard lenses are made from a basic plastic material, commonly CR-39, and are ideal for people with mild prescriptions. These lenses are typically more affordable, offering great value for low-to-moderate vision correction needs.

Key Features of Standard Lenses:

  • Affordable– Standard lenses are the most budget-friendly option available.
  • Ideal for mild prescriptions– Great for those with low prescription strengths (e.g., under +2.00 or -2.00).
  • Heavier– Standard lenses can be thicker and heavier, especially with higher prescriptions.
  • Scratch-resistant coatings– Standard lenses often come with protective coatings to reduce scratches but may not be as durable as high-index lenses.

Standard Lens Index Available:

  • 50 Index– Perfect for low to moderate prescriptions, this lens material offers a cost-effective solution for those with minor vision correction needs.

What Are High-Index Lenses?

High-index lenses are made from a thinner, lighter material, offering significant advantages over standard lenses, especially for people with higher prescriptions. These lenses efficiently bend light, allowing them to reduce thickness and weight while maintaining high optical clarity.

Key Features of High-Index Lenses:

  • Thinner & lighter – High-index lenses are ideal for reducing the thickness and weight of your lenses, even with stronger prescriptions.
  • Aesthetics – High-index lenses offer a sleeker, more stylish look due to their thinner profile.
  • Increased durability – These lenses are often more resistant to impacts and better suited for daily wear.
  • Enhanced visual clarity – High-index lenses provide improved clarity, especially for stronger prescriptions, with less distortion compared to standard lenses.

High-Index Lens Options at 2020Glasses.co.uk:

  • 61 Index – Great for those with prescriptions over +2.00 or -2.00. This index is thinner and lighter than standard lenses, offering a good balance of comfort and affordability.
  • 67 Index – Perfect for prescriptions over +3.00 or -3.00. The 1.67 index significantly reduces lens thickness, making it an excellent choice for moderate-to-strong prescriptions.
  • 74 Index – Ideal for prescriptions over +5.00 or -5.00. This is the thinnest and lightest lens material available, providing maximum comfort, style, and clarity for very strong prescriptions.

How to Choose Between Standard and High-Index Lenses?

Choosing the right lenses depends on your prescription strength, lifestyle needs, and personal preferences. Here’s a simple guide to help you decide:

Opt for Standard Lenses if:

  • You have a mild prescription (e.g., under +2.00 or -2.00).
  • You are looking for a cost-effective lens option.
  • You don’t mind slightly thicker lenses.

Opt for High-Index Lenses if:

  • You have a moderate prescription (e.g., +3.00 or -3.00), the 67 index is perfect for reducing lens thickness and improving comfort.
  • You have a strong prescription (e.g., over +5.00 or -5.00), the 74 index offers the thinnest, most comfortable option for your lenses.
  • You want thinner, lighter lenses for comfort and aesthetics.
  • You prefer improved visual clarity and long-lasting durability.

Why Choose High-Index Lenses at 2020Glasses.co.uk?

At 2020Glasses.co.uk, we offer a wide selection of both standard and high-index lenses to suit any prescription. Our high-index lenses are designed to offer superior comfort, better aesthetics, and excellent clarity, no matter the strength of your prescription.

Ready to Upgrade Your Prescription Lenses?

Whether you’re after standard lenses for mild prescriptions or high-index lenses for stronger prescriptions, 2020Glasses.co.uk has the perfect lenses for you. Explore our extensive range today and experience the best in vision correction, comfort, and style.

 

Posted in Advice, Lifestyle Edit, Top Tips.
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PreviousHow to Read Your Glasses Prescription Like a Pro
NextWhat Are Varifocals (Progressive Lenses) and Why Should You Consider Them?

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