Progressive lenses allow you to see up to three distances at once—near, far, and everywhere in between—all with one single lens. Unlike bifocals or trifocals, which have lines to indicate where the lens changes prescription strength, progressive lenses are an uninterrupted pane of glass. The prescription changes depending on which part of the lens you look through, which might take some getting used to.

Progressive lenses can address vision changes that often come with age. For many people, presbyopia, or difficulty focusing on close objects, can set in around age 40, making it harder to read text at a normal reading distance.¹ While reading glasses are a typical tool to manage this, progressive lenses are now also an option, officially entering the progressive lenses vs. bifocals debate.

This guide breaks down what progressive lenses are, how progressive lenses work, and the pitfalls of trying to order progressive glasses online.

Types of Progressive Lenses at a Glance

What are progressive lenses?

Progressive lenses are not the same as bifocals. Progressive lenses use a single lens of glass that enables you to see distance, near distance, and intermediate distance without the lines that separate bi- and trifocals. For this reason, progressive lenses are sometimes called multifocals or no line bifocals.²  Doctors sometimes refer to them as PALs, short for progressive addition lenses. If you wear contacts, progressive contact lenses are also available, so you don’t have to switch to glasses to get multifocal correction.

Think of progressive lenses as blended bifocals. They blend your prescription gradually from distance, to intermediate, to near, instead of having a line and jumping from your distance power to your near power.

Progressive lenses at a glance

• Progressive lenses, also called multifocals, let you see up to three distances at once.
• Progressive lenses can take some getting used to.
• You should not try to measure yourself for progressive lenses.

How do progressive lenses work?

Progressive lenses work similarly to bifocals: You look through the bottom section of the glass, and it's your reading prescription. You look straight ahead, and it's your distance prescription. The main difference between bifocals and progressive lenses is that the physical line separating the prescriptions on a bifocal lens is absent from a progressive lens.

Your prescription for progressive lenses looks a little different than the minus-symbols you may be used to seeing on your single-prescription lenses. Multifocals like progressive lenses and bifocals have an additional set of numbers with a plus symbol. This indicates the magnified near-power prescription.

Progressive lenses vs. bifocals vs. trifocals

All three fall under the umbrella term multifocal lenses, but each works a little differently. Bifocals contain two prescriptions: near and distance. Trifocals include a small band for “intermediate” distance on top of the typical bifocal near-distance half-moon. Progressive lenses take the trifocal concept and blend the distances, removing the lens lines.

But in order to blend those lines, blurry distortion can show up along the edges of progressive lenses. Not all wearers work past that. The distortion can feel permanently "swimmy," like when you first try on a new pair of prescription lenses.

Benefits of progressive lenses

If you’re worried that bifocals might change how people perceive you, one of the biggest advantages of progressive lenses is that no one can tell they’re progressive lenses. But beyond public perception, the lack of solid lens line also makes progressives potentially less distracting to the wearer than bifocals. Because progressives don't have a lens line, there is no "image jump." Image jump is the illusion of movement when your focus crosses the line between the close-up part of the bifocal or trifocal lens and the distance part.

Another benefit of progressive lenses is not having to keep track of multiple pairs of glasses. You’ll have less to keep up with since your reading glasses, driving glasses, and regular distance glasses are all in one set of lenses. If you work with your doctor to customize all three fields of vision to you, rather than buying generic progressives, your progressives can be the only pair of glasses you need.

Drawbacks

• Progressive lenses are more expensive than bifocals or trifocals.
• There's a potentially long adjustment period as you hunt for your “sweet spot” in the lenses, or where to look for reading, driving, and other activities.
• “Swimmy” distortion on the sides of the lenses may be noticeable to some
• It can be difficult to see out of the edge of the glasses or use your peripheral vision.

Tip: When using progressive lenses, point your nose in the direction of what you want to look at. Moving only your eyes may make it harder to find the correct viewing area because of the multifocal lenses.

How much do progressive lenses cost?

Without add-ons like Transitions or blue-light filters, progressive lenses can cost between $145–$1,000. This range depends on factors like your prescription, the lens material you choose, and any coatings or add-ons. The more personalization you need or want, the higher the cost. Generic progressives typically fall in the $145–$200 range. Vision insurance can help offset some of that cost.

Does insurance cover progressive lenses?
Yes, some insurance covers progressive lenses. Your vision insurance might not cover your costs in full, but some major vision insurance providers like VSP may cover progressive lenses. You will need to verify what your individual plan covers with your insurance provider.

Does Medicare cover progressive lenses?
No, Medicare does not generally cover any kind of prescription lenses. Medicare vision coverage is more focused on testing and diagnostics. Some Medicare Advantage (Part C) plans may offer additional options for coverage of eye exams and prescription lenses.  

When should you see an eye doctor?

See an eye doctor to fit you for your first pair of progressive lenses. You should not try to self-measure at home for progressive lenses.

“Ordering progressive and bifocal lenses involves much more than just entering a prescription; achieving optimal vision requires precise measurements and proper fitting,” said Lisa M. Greene, OD, of Asheville Vision & Wellness in Asheville, North Carolina. “Determining the correct pupil height and fitting position is both a science and an art.”

Self-measuring, like you can for any of the best online prescription glasses, may lead to inaccurate results with progressive lenses. Three distances is a lot to gauge on your own without proper training. 

“An experienced optician evaluates how you naturally hold your head and posture when looking through your glasses, ensuring the progressive corridor is positioned exactly where it should be,” said Greene. “Factors such as vertex distance (the distance from the lens to your eye), frame wrap, pantoscopic tilt (the angle of the frame), and the way the frame fits your face can all affect how well you see through your lenses.”

Frequently asked questions

How long does it take to adjust to progressive lenses?

Your adjustment period depends on your eyes and your lifestyle. Some people adjust to progressive lenses in as little as a week, while others take closer to a few months. Still others can’t get used to the permanent “swimmy” periphery of progressive lenses.

What are the disadvantages of progressive lenses?

Cost is the main disadvantage of progressive lenses. They can also take longer to adjust to than bifocal lenses.

Can you drive with progressive lenses?

Yes, as long as you look only through the distance-power portion of the lens and are fully used to wearing your progressive lenses before you get behind the wheel. Note that with progressive lenses, your periphery is reduced and often blurry.

What is the difference between a normal lens and a progressive lens?

A normal lens contains one single prescription, usually to address near- or far-sightedness. After age 40, that's often no longer the only prescription you need at once. Progressive lenses and bifocals add your near-distance reader prescription to the normal lens.

Sources

1. Mayo Clinic. Presbyopia. Found on the internet at https://www.mayoclinic.org/diseases-conditions/presbyopia/symptoms-causes/syc-20363328

2. Cleveland Clinic. Progressive Lenses. October 2, 2023. Found on the internet at https://my.clevelandclinic.org/health/treatments/progressive-lenses