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COVID Update

Per Governor Baker's new guidelines regarding mask policies, we will continue to require face masks in our office for both patients and staff at all times. Below is a copy of his new policy; Effective May 29, 2021, face coverings will continue to be required for both vaccinated and unvaccinated individuals at all times in the following locations, subject to the exemptions listed below: In Health Care Facilities and Provider Offices, defined as healthcare facilities or providers licensed or operated by the Commonwealth including nursing homes, rest homes, emergency medical services, hospitals, doctor’s office, urgent care settings, community health centers, vaccination sites, behavioral health clinics, and Bureau of Substance and Addiction Services (BSAS) facilities. This requirement applies to patients and staff.

We’re located in the Berkshires in Western Massachusetts on 217 South Street in Pittsfield.

Home » Eye Care Services » 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.

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Holiday Hours

We will be closed on Monday, May 31st for Memorial Day.