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Home » Private: Your Eye Health » Vision Over 40 » Multifocal Eyeglass Lenses

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.

stouffvillecovid

Dear Valued Patients,

We would like to clarify to our patients that despite the province-wide lockdown starting Thursday, December 24, our office is still open.  Patients who have appointments already booked will still be seen as scheduled.

We will continue to operate in a way that is in alignment with provincial guidelines and is designed to keep you and our staff safe while still allowing us to deliver the high standard of eye care you are accustom to.

Our doctors have modified their schedules to increase physical distancing. As a result, fewer appointments are available, and we are having to assign these appointments to people with immediate and greatest needs.

We will also be:

• Using telehealth appointments, when appropriate, to deliver care from a distance.

• Time in our Frame Gallery will be scheduled for patients to try on and choose eyewear.

• All eyewear adjustments, repairs, and pick-ups will be scheduled.

• Our doors will be closed as we will not be accepting walk-ins at this time.

• Contact lenses will continue to be shipped directly to patients.

We look forward to servicing our amazing community with all their eye care needs and thank you for supporting us as we navigate these unprecedented times.

Stouffville Optometry