If you have started holding your phone or a menu farther away to read it, you are not alone. The National Eye Institute says everyone gets presbyopia as they get older, usually after age 45. Glasses with more than one prescription in the same lens are a common solution.
Key takeaways
- Bifocals have two zones and a visible line; progressives blend distance, intermediate and near with no line.
- The AAO says progressives can cause more distortion than other lens types, so accurate measurement and fit matter.
- Both take some adjustment time.
- Which is better depends on your prescription, daily tasks and preferences.
What bifocals are
A bifocal lens has two zones. The top is for distance and the bottom is for reading, with a visible line where they meet. Trifocals add a third zone for arm’s-length tasks such as a computer screen.
What progressive lenses are
A progressive lens also has distance and reading areas, but the strength changes gradually, so there is an in-between area and no visible line. The American Academy of Ophthalmology describes them as providing a smooth transition rather than visible dividing lines, and notes they can cause more distortion than other types. The Cleveland Clinic explains how they work in more detail.
Differences to think about
| Bifocals | Progressives | |
|---|---|---|
| Appearance | Visible line | No visible line |
| Range of vision | Two zones | Smooth range from far to near |
| Adjustment | Short for many people | Learn where to look through the lens |
| Fit | Standard measurements | Needs precise measurements |
Tips for getting used to new lenses
- Wear them as much as you can in the first days so your eyes can adjust.
- Point your nose at what you want to see, and move your eyes up or down for distance or reading.
- If something feels off after a reasonable adjustment time, go back and ask. Small adjustments often help.
Which is right for you?
It depends on your prescription, your daily tasks, your budget and how you feel about the look. Bring your questions to your optician. See progressive, polarized and Transitions lenses, our frames, and eye exams.
Frequently asked questions
Why do progressives feel strange at first?
The lens power changes gradually, so you need to learn where to look. Most people adjust over a few days.
Can I get progressive sunglasses?
Yes, progressives can often be made into sunglasses. See our prescription sunglasses page.
Visit Reel Optics in Old Bridge
If you would like help, our team in Old Bridge is here. You can book an eye exam or ask about lens options at Reel Optics Vision Center, 2553 County Rd 516, Old Bridge, NJ 08857. Appointments are recommended for eye exams, and walk-ins are welcome when you are shopping for glasses. See hours and directions on our Old Bridge page, or send us a message.
Related reading
Sources and further reading
- American Academy of Ophthalmology: Eyeglasses, how to choose glasses for vision correction
- Cleveland Clinic: Progressive lenses
- National Eye Institute: Presbyopia
This article is general information, not medical advice and not a diagnosis. For questions about your own eyes, talk with your eye doctor.

