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Westwood, NJ 07675

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Home » 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.

IMPORTANT UPDATE: PLEASE READ ENTIRE MESSAGE

Valley Eye Associates is OPEN for all patients and appointment types.

 

Below are the safety protocols that have been put in place for all visiting patients:

  1. All equipment is cleaned with 70% isopropyl alcohol before and after each use.
  2. A protective plastic shield has been installed at the front check in area.
  3. Upon arrival each patient will need their temperature checked with a non-contact thermometer.
  4. We will use our online check-in form as well as requiring any insurance cards or documents to be sent to us via text/email if possible.
  5. All payments can be made with credit card by phone.
  6. All visitors will be required to wear a face covering or mask at all times. You will NOT be allowed to enter without wearing one.
  7. All pick-ups, adjustments, and other visits will require an appointment time. This is needed so that we know when to expect you and can distance you from anyone else.
  8. Please come at your scheduled time. If you arrive too early you may have to wait in your car. If you arrive too late for us to perform the necessary tests for your exam you may have to be rescheduled.
  9. Frames that are tried on must be put into a separate box. Frames are disinfected by saturating in a 3% hydrogen peroxide solution for a minimum of 10 minutes, dried, and then stored for 3 days before being put on display.

Feel free to call us at 201-664-0847 during our business hours or visit our website at www.2020nj.com to reschedule your appointment.

Thank you.