Visit our 2 convenient locations!

5900 Heckert Rd.
P.O. Box 324
Bakerstown, PA 15007
724-443-6767 Phone
724-443-6730 Fax

4001 Freeport Rd.
Natrona Heights, PA 15065
724-226-0444 Phone
724-226-0744 Fax


New Technology for Bifocal Contact Lenses

Bifocal contact lenses have been around for many years, but until recently they weren’t very popular.  Today, new technology has produced more successful and a greater variety of designs. So if one design or brand doesn’t work for you, another might.

Often after the age of 40 people develop presbyopia, a condition that affects our ability to focus on objects that are near.  Think about it.  Do you have a separate pair of glasses for reading?  Or do you need to wear bifocals to see both near and far?  Some people find that they struggle to read newspapers, books, or menus and must hold them further away to be able to see the print better.  Bifocal contact lenses are great for people with active lifestyles who do not want to be chained to their reading glasses.

There are several different types of contacts that can be used to find what works best for you to replace your need for reading glasses or bifocals.  The doctors at Bissell Eye Care can give a proper diagnosis as well as help you find the best treatment options.

Concentric multifocal contact lens design contains the lens power for seeing distant objects in the center of the lens, which is surrounded by concentric rings of near and distance powers of your bifocal contact lens prescription.

The design of aspheric multifocal contact lenses is similar to that of progressive eyeglass lenses — there’s a gradual change in power from far to near, with no visible lines in the lenses.  Unlike eyeglasses, however, aspheric multifocal contacts are simultaneous vision lenses, so your visual system must learn to select the proper lens power for the moment.

Your pupil size and your “add,” or near prescription are two factors our doctors consider in choosing a bifocal contact lens that is best for you.   There are no hard and fast rules; but, aspheric multifocal contact lenses tend to work best for mild to moderate presbyopia, and concentric or segmented multifocal contacts often are more successful for advanced presbyopia.

Bifocal and multifocal lenses come in both soft and rigid gas permeable materials.  They also come in a hybrid form.  This means that the contacts have the option to be used and disposed of at set times, and can even be daily in some cases.

What is the difference……Bifocal, Multifocal contacts?

Bifocal contact lenses have two different prescriptions in the same lens.  They are similar to bifocal glasses where the top half is used for seeing far while the bottom is used for seeing close.  A segmented bifocal, and sometimes also referred to as an alternating or translating bifocal places the near vision prescription in the lower part of the lens, and the normal, distance prescription is in the rest of the lens.

Multifocal Contact Lenses and how they work

Multifocal contacts have a range of powers in each lens and are designed two different ways.

  1. Simultaneous Vision. This option is set up so your eye looks through both near and far at the same time.  Your brain adapts and allows focus on either the near or far prescription depending on the distance of the object.
  2. Alternating Vision. In the alternation set up is more like a bifocal glasses design.  It allows your pupil to move up or down as necessary to get the proper focus.

If you’re tired of carrying around two pairs of glasses, or have tried bi-focal contacts years ago but couldn’t wear them, technology has changed.    The doctors at Bissell Eye Care will work with you to see how bi-focal contact lenses can benefit you.

Are you ready to enjoy outdoor activities such as gardening and sports more easily?  People who once thought they could never benefit from contact lenses now have a second chance.  To learn more about the latest technology in bi-focal contact lenses, give our office a call at 724-444-6767 or 724-226-0444.

About Bissell Eye Care: John D. Bissell, OD owns and operates Bissell Eye Care servicing Northern Pittsburgh and Alle-Kiski Valley regions. With two locations to treat patients, we offer evening and Saturday appointments. Bissell Eye Care provides comprehensive eye examinations for the entire family beginning as early as 6 months, ocular disease detection and treatment, eyeglasses, sunglasses, activewear, contact lenses, and low vision examinations for those with significant vision loss. We accept most types of vision and health insurance plans. For more information, visit or call our Bakerstown Office at 724-443-6767 or Natrona Heights office at 724-226-0444.