What are Eyeglass Lenses Made Of?

When searching for affordable glasses near me, there are clinics like Dr. Tavel that can assist you during the eye exams and choose the right frame for you.

But have you ever wondered about the types of eyeglass lenses you can choose and what they’re made of? You’ll be surprised with the many different types of lenses and the materials they are made of!

What are Eyeglass Lenses Made Of?

Not all eyeglass lenses are made of glass, contrary to popular belief. While most lenses were made from glass originally, this changed over time as technologies advanced. Rather than using glasses, manufacturers began making lenses with plastics.

Now, lens manufacturers use various kinds of high-tech plastics based on the differing lens hardness, thicknesses, indexes, and needs. Here are the available types of lenses:

  • Polycarbonate: Impact-resistant lenses with UV protection best suited for those who exercise, play sports, work in areas where glasses can get damaged, or children who play rough
  • Trivex: Made of newer plastic comparable to polycarbonate. The material is thin, lightweight, and impact-resistant, correcting vision a bit better for some
  • High-index plastic: Suited for those with stronger prescriptions as these are lighter and thinner lenses
  • Aspheric: Lenses with varying degrees of curvature, so they may be flatter and thinner to use more of the lens’ surface
  • Photochromic: The lenses are either made from plastic or glass and can change from clear to tinted when exposed to the sun. This removes the need for sunglasses
  • Polarized: Lenses that can reduce glare from surfaces, like water. This makes the material suitable for driving and sports, though it may be hard to see liquid crystal displays from car dashboards

There are also other things to determine when it comes to being prescribed eyeglass lenses, such as:

  • Your vision problem
  • If you have astigmatism
  • Your age
  • If you want or need eyeglass lens coatings 

About Glass Lenses

Since plastics are the new norm, why are there people still wearing glass lenses? That’s because the material does have its advantages, depending on the user’s needs and preferences. There are different glass materials used for such lenses, depending on the manufacturer and lens index.

The reason why they are less popular now is that glass lenses are more delicate, heavier, and tougher to produce. That said, they still have their benefits, and your eye doctor in Bloomington IN will be able to determine if you need glass or plastic lenses.

One notable advantage is how glass lenses have a better index range compared to plastic lenses. While this isn’t too important for those with little to no prescription, it makes a huge difference for those with strong ones.

Eyeglass lenses made of mineral glass allow wearers to receive thin lenses without much distortion. Furthermore, glass lenses are harder, making them more scratch-resistant.

Wrapping It Up

We hope that this article on eyeglass lens materials wrapped up a bit of confusion! You can consult with your eye doctor regarding the best types of lenses you need.