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Multifocal Eyeglass Lenses

Multifocal lenses technically refer to any lens that provides more than one zone of corrective power and would therefore include bifocal, trifocal and progressive lenses. Multifocals are designed for the many individuals over 40 who struggle with presbyopia – the age-related near vision loss that requires us to use eyeglasses for reading and focusing on objects in our near vision. The multiple lens powers enable you to correct for near and distance vision with one pair of glasses.

Bifocal Lenses

Bifocal lenses are divided into two powers, one for distance vision and the second for near vision. Bifocals are created in a variety of designs with different sized and shaped viewing segments for near and far vision. While bifocals provide good distance and near vision, they are lacking in corrective power for intermediate areas, which is what has led to the development of trifocal and progressive lenses.

Trifocal Lenses

Trifocal lenses provide an additional lens power zone for intermediate vision (which is typically about an arm’s length away).

Some people are bothered by the visible lines where the lenses are divided in bifocal and trifocal lenses. In addition to aesthetics (the lines have become a sign of presbyopia which many associate with growing old), the harsh divisions in the zones can cause a distortion in the object you are viewing (an image jump) when you switch your gaze from one power to the next.

Progressive Addition Lenses (PALs)

Progressive lenses were designed to eliminate the “image jump” that results from the distinct zones in bifocal and trifocal lens design. By providing a smooth progression of many lens powers across the lens, PALs allow for clear vision near, far and every distance in between. Further, similar to natural vision, they just require a slight movement of the eye, rather than the whole head, for you to see through different lens powers. The smooth transition also eliminates the visible lines present on the other lenses which many view as tell-tale signs of age-related vision difficulties.

Important Notice

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Reopening Announcement

We are really excited to be able to open our doors officially on Wednesday May 14, 2020!

We have missed you!! We are opening, but it is not business as usual. Please be patient with us for the next few months, as we gradually bring our operation hours/days and staffing back to previous levels.

The safety of our patients and employees is our first priority.

We are making changes to our operation as regulated by our College guidelines to maintain a safe environment and social distancing standards. The Eye on Evanston Team will all be wearing masks, so you may not be able to see us smile under our masks, but we are all happy to see you again! :)

Rest assured we are following stringent disinfecting protocols and social distancing to keep everyone safe, as per our College guidelines.

ALL patients/clients need to have an appointment to enter the clinic. If you are here and don’t have an appointment, please call us at 403-457-9669.

Pick-ups and adjustments are by appointment only.

All patients/clients are encouraged to wear masks before entering the clinic.

We kindly request that you postpone your visit to us if:
a. You are currently COVID19 positive
b. Have been exposed to another COVID 19 patient
c. Have any COVID 19 symptoms
d. Travelled outside AB in last 14 days

We look forward to serving you! Please continue to take care and stay safe.

Remember, we are all in this TOGETHER, taking care of each other.

Please call or email us before coming in: 403-457-9669 or info@eyeonevanston.com