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Prescription Eyeglasses

Before buying a new set of prescription glasses, it's essential to understand the various types of lenses available and how they can benefit you.

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High-Quality Lenses in Plano, Texas

To help you make an informed decision, let’s explore the various options for prescription eyeglass lenses.

You can also visit our store anytime with your current prescription to choose your frames and lenses.

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High-Index Lenses

High-index lenses are an excellent choice for people with severe nearsightedness or farsightedness, as they offer an alternative to the thick, bulky appearance of traditional lenses.

They bend light more efficiently than standard lenses, resulting in thinner and lighter eyeglasses. This enhances comfort and improves the overall aesthetics of your prescription eyewear.

Despite their benefits, high-index lenses are also highly reflective, more susceptible to damage, and typically more expensive. Moreover, minor visual distortions may sometimes occur when looking through the edges of the lenses.

Anti-reflective and scratch-resistant lens coatings can address these issues.

Types of High-Index Lenses

The index of refraction measures the ability of an eyeglass lens to bend light, which depends on the speed at which light can pass through the material.

A higher index of refraction indicates that the lens can bend light more efficiently, resulting in a thinner lens. High-index lenses typically range from 1.53 to 1.74.

High-index materials can be used to create various types of modern lenses, including aspheric and photochromic lenses.

Aspheric Lenses

Aspheric lenses offer several advantages over ordinary lenses. They’re thinner, lighter, and – unlike traditional lenses – their curvature changes gradually from the center to the edges.

This is beneficial for correcting severe farsightedness, as the frame has less bulging.

Furthermore, aspheric lenses provide a wider field of view and improved peripheral vision compared to conventional lens designs. This is why high-quality camera lenses often incorporate aspheric designs.

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Photochromic Lenses

If you frequently transition between indoor and outdoor environments, photochromic lenses, also known as transition lenses, may be ideal for you.

These lenses darken in response to the sun's UV rays, instantly shading your eyes when you step outside and then lightening when you enter indoors or shaded areas. Eye Pieces Plano can easily fit photochromic lenses into your chosen frames.

The advantages of photochromic lenses include convenience and consistent UV protection. They’re also available in various tints and can be incorporated into different lens materials and designs (including high-index lenses, bifocals, and progressive lenses). They also eliminate the need for carrying both prescription eyeglasses and sunglasses, making them cost-effective.

However, keep in mind that many photochromic lenses don’t darken inside a car, as the windshield blocks UV rays. The darkening and lightening process of the lenses may also be slower in cold weather conditions.