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High Index and Aspheric Lenses

What are High Index Lenses?

A high index lens is a photochromic 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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COVID-19 Changes to Availability

Under the advice of the Chief Medical Officer of Health Ontario, our office is closed to in-person care until further notice as a precaution to help protect our patients, team members and the community against the spread of COVID-19.

Should you experience an eye emergency or concerns about your eye health, please email dec251b@gmail.com or call (519-662-3340).

If you are in need of contact lenses, we offer free direct ship. If you have an eyeglasses emergency, we will do our best to help you.

A team member will be responding to messages and answering the phone between the hours of 10:00 am and 12:00 noon, from Monday to Friday.

We apologize for any inconvenience. Once our office reopens, we will reschedule your appointment.

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We appreciate you patience and understanding during this very difficult time.

Sincerely, and with best wishes,

The Dolman Eyecare Team