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Home » Eyeglasses & Contacts » Lenses » Prescription Eyeglasses » High Index and Aspheric Lenses

High Index and Aspheric Lenses

What are High Index Lenses?

A high index lens is a lens that has a higher “index” of refraction. This means it has a greater ability to bend light rays to provide clear vision for people with stronger prescription glasses. But that’s the technical terminology. What do high index lenses mean for eyeglass wearers?

Thinner, lighter, and more visually appealing, that’s what! High index lenses are manufactured to be thinner at the edges of the lens and lighter in weight overall.

High index lenses are a good option for people who have strong prescriptions for myopia—commonly called “nearsightedness” due to a difficulty in focusing on far objects. A high-index lens can bend light rays more, while using less material in lenses created for both nearsighted and farsighted people (hyperopia).

No more soda bottle glasses

In times past, strong prescriptions meant thicker, heavier lenses, giving some a “glass bottle” appearance. But now, with high index glasses available in thinner, lightweight plastic (as well as slightly heavier glass), lens wearers with stronger prescriptions can get more attractive, yet equally effective, lens products. Because high-index lenses bend light more, anti-reflective (AR) treatment is often recommended as an add-on for optimum clarity of vision.

For better comfort, better vision and improved cosmetic appeal, people with strong prescriptions can’t beat high-index lenses.

Special thanks to the EyeGlass Guide, for informational material that aided in the creation of this website. Visit the EyeGlass Guide today!

Our Office is CLOSED in response to the Coronavirus

We are cancelling all scheduled appointments this coming week (until at least April 5th) but we will be available for urgent matters and emergency care.

Many contact lens orders can still be filled and will be shipped directly to your home. Contact us for more information.

We will be checking phone messages from Monday to Friday 9:00 am until 2:00 pm for urgent matters and for contact lens orders.

The situation is fluid and there is a possibility that the period may be extended. We are complying with the Ministry of Health recommendations and will keep you updated as to any changes. Please come here to see updates or give us a call.