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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!
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Update on COVID-19

Family Eye Center Optometry’s focus is, as always, on the health and safety of our patients, staff and the members of our community.

In response to recent recommendations from the California Optometric Association and in compliance with San Mateo County’s shelter in place order we will be temporary closed from March 17 to April 7, 2020. All regularly scheduled routine eye appointments will be cancelled – we will reach out to reschedule.

If you need assistance in ordering or picking up contacts and glasses please call/text us at 650-654-2015 or email at info@familyeyeco.com. We will be checking voicemails, texts and emails throughout the day.

Stay safe and healthy.

Thank you for your patience, and we look forward to seeing you back when we reopen – stay tuned for updates.

Alina Kagan, O.D.