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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!

Dear Oakbrook Eyecare Family,

At Oakbrook Eyecare, it is always our top priority to provide everyone the best possible care, as well as to ensure the health and safety of our patients, employees, families and our community. We appreciate the trust you have in our practice, and please know that we take the health of your families very seriously.

We have been following the evolution of the COVID-19 outbreak, and have been taking guidance from the CDC, AMA, and IOA regarding the best practice and management of patient care in this rapidly changing situation.

Starting this week, we will limit our optical hours for glasses and contact lens pick-ups to Tuesday, March 17th, Thursday, March 19th, Tuesday, March 24th, and Thursday, March 26th from 9:30-6:00 p.m. For contact lens orders, we ask you to contact us during the stated hours and we will make every effort to have the contact lenses sent directly to your home.

Our clinic will suspend eye examinations and be limited to emergency eyecare only. For ocular emergencies only, please call Dr. Franceschini at 630-240-1103. For other eyecare related inquiries, please leave a message and we will return your phone call.

We greatly appreciate your understanding and will keep our patients updated via our website and email.

With warm regards,

Dr. Franceshini and Staff
(630) 571-0399