Single Vision Vs Bifocals Vs Varifocals-A Simple Guide
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When you get your eyes tested, glasses are usually fitted with single vision lenses by default. Additional options such as Anti-Reflcection Coating or Blue Light Protection can be added if needed. But sometimes, you’re told that bifocals or varifocals may suit you better-and that’s where confusion often starts. You’re not alone in feeling unsure. Most people don’t really know what the difference is. They just know that one pair of glasses no longer feels enough.
This guide explains each option clearly, so you can understand what works best for how you actually use your eyes every day.
Single Vision Lenses
One distance. One purpose.
Single vision lenses correct vision at one viewing distance only. They’re the most straightforward lens option and are included in the price of your frame at Sapphire Optics. They’re commonly used for:
- Distance (driving, watching TV)
- Reading
- Computer or screen use
If your vision needs are simple, or you only struggle at one distance, Single Vision lenses are usually the best choice-easy to adapt to.
They’re also a popular choice if:
- You don't switch distances often
- You wear glasses part-time
- You prefer something uncomplicated and familiar
- You are wearing glasses for the first time
Bifocal Lenses
Two clear zones — no guessing
Bifocals are designed for people who need help with both distance and near vision. They contain:
- One section for distance
- One section for reading
- A visible line separating the two
Some people worry about bifocals feeling “old-fashioned”, but many still choose them because they offer clear, immediate focus at each distance-without blending zones.
Bifocals may suit you if:
- You prefer clearly defined viewing areas
- You want instant reading focus
- You’ve worn bifocals before and liked them
Varifocal Lenses
Multiple distances in one lens
Varifocals (also called progressives) allow you to see near, intermediate, and distance-all within a single lens. Instead of a line, the prescription changes gradually from top to bottom.
They’re designed for people who:
- Switch between distances frequently
- Want one pair for everyday use
- Prefer a more seamless visual experience
Varifocals do take a short adjustment period for most people. That’s normal-your eyes and brain are learning where to look for different distances. Once adapted, many people find varifocals incredibly convenient, and never go back to other lens types.
Which One Is Right for You?
There’s no “best” option-only what fits your life.
Ask yourself:
- Do I wear glasses all day or only sometimes?
- Do I mostly look at one distance, or several?
- Am I switching between reading, screens, and distance throughout the day?
- Do I want clear separation, or a smooth transition?
Your prescription, lifestyle, and comfort all matter in the decision here.
You Don’t Have to Decide Alone
Lens choices can feel overwhelming-especially when terms are thrown around without explanation. Whether you’re ordering new glasses or reglazing frames you already love, we take the time to check prescriptions properly and make sure the lens choice actually suits how you’ll use them.
No pressure. No rushing. Just the right setup for your eyes.
Ready to Explore Your Options?
Browse our Women’s / Men’s / Unisex collections, all compatible with single vision, bifocal, and varifocal lenses where suitable.
Already happy with your frames? Our Reglaze Only service lets you upgrade your lenses without changing your look.
FAQ
What is the main difference between single vision, bifocal and varifocal lenses?
Single vision lenses correct one distance only, bifocals correct two distances with a visible line, and varifocals correct near, intermediate and distance vision in one seamless lens.
Which lens type is easiest to adapt to?
Single vision lenses are usually the easiest to adapt to. Bifocals are also straightforward for many people, while varifocals may take a short adjustment period as your eyes learn where to look for different distances.
Are bifocals outdated compared to varifocals?
Not necessarily. Some people prefer bifocals because they offer clearly defined viewing areas without blending zones. The best option depends on personal preference and visual needs.
Do varifocals take time to get used to?
Yes, most people experience a short adjustment period with varifocals. This is normal and usually settles within a few days to a couple of weeks with consistent wear.
How do I know which lens type is right for me?
The right choice depends on how you use your eyes day to day-whether you focus on one distance or switch frequently between reading, screens and distance vision.
Can I change lens types without changing my frames?
Yes. If your frames are still in good condition, reglazing allows you to change lens types without replacing your glasses.
