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What are Bifocal Lenses and how do they work?

It is said that Benjamin Franklin contributed to creating the very first bifocal lenses in 1784.

Bifocals are most commonly prescribed to people who require a pair of glasses for both long sight distance and near sight reading.

 

Bifocal lenses allow you to have two prescriptions in one lens, this means you only need to carry one pair of glasses rather than constantly switching between 2 pairs. Typically, bifocals are for reading in the lower half, and distance in the upper half, however, depending on the wearer and their requirements the upper segment could be for intermediate distance and the lower segment for their reading prescription.

Explanation diagram with different types of bifocal lenses

 

There are many types of bifocals with varying shapes and sizes of segments. The most common being a D28 seg, this lens gets its name due to the segment being a D-shape and 28mm wide. Bifocals are also available in round segments or even segments that are the full width of the lens, these are known as executive bifocals.

 

types of bifocal glasses by Lenses in Glasses

 

Although the change between powers can take time to adjust to there are many benefits of bifocals, these include:

  • Wide near zone for natural eye movement
  • Smooth graduation between powers
  • Optimized for shallower frames
  • Appearance of a single vision lens
  • One frame, two prescriptions
  • Cheaper alternative to varifocals

Our bifocal lenses can be clear lenses, transitions, polaroid and sunglass lenses, anti-reflective coatings, or blue protect.

We can provide you with bifocal lenses from leading manufacturers such as Zeiss.

Prices start from £48.00 for standard uncoated bifocals.

 

How does it work?

Step 1.

Request a free pack

Simply fill out our online form below and we will send you out a prepaid Free post box to put your frames in.

Step 2.

Post your glasses

When your free pack arrives, simply put your frames in the box and post them back to us, safe, fast tracked, insured and FREE with no fuss and no obligation.

Step 3.

Have new lenses fitted

When your frames arrive we’ll contact you to discuss your new lens options. Once your lenses have been fitted, we will return your glasses with insured and signed for delivery.

How does it work?

hand computer cursor icon

Step 1.

Request a free pack

Simply fill out our online form below and we will send you out a prepaid Free post box to put your frames in.

a pair of glasses icon

Step 2.

Post your glasses

When your free pack arrives, simply put your frames in the box and post them back to us, safe, fast tracked, insured and FREE with no fuss and no obligation.

a pair of glasses being put into an envelope icon

Step 3.

Have new lenses fitted

When your frames arrive we’ll contact you to discuss your new lens options. Once your lenses have been fitted, we will return your glasses with insured and signed for delivery.

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