If you’ve ever tried to read a small label or work on a detailed task with safety glasses that don’t quite help you see better, you’re not alone. The need for safety eyewear with built-in reader lenses is growing fast across industries – and for good reason.
That’s why HexArmor® offers two smart solutions to help better serve workers’ eye needs: progressive lenses and bifocal lenses. Both are designed to bring clarity, comfort, and serious durability to the jobsite so workers can stay sharp, safe, and focused all day long.
We've detailed the differences below and why someone would want one version over the other for both types of magnification.
The difference is clearer than you think
First, let’s start with some quick facts. Both progressive and bifocal options are used when a magnification is needed within the lens, helping objects appear bigger and clearer, and can be prescription- or non-prescription-based. Most safety glasses will cover workers who need non-prescription-based eyewear, as anything prescription-based typically needs eye doctor involvement.
Though similar, progressive and bifocal lenses work in slightly different ways.
Bifocal lens
Safety glasses with bifocal readers have two viewing areas divided by a visible line: a larger viewing area for distance and a smaller segment for reading, which is most often a small rectangular shape located within the bottom half of the lens.
A downside to this kind of lens is that some people find the “image jump” that occurs at the visible line of magnification obtrusive, especially for those who must look down when walking. However, this effect can be mitigated by wearing bifocals as much as possible to get used to the difference.
Progressive lens
This lens option will also provide magnification, but unlike a bifocal that has a concentrated magnification area, progressive lenses will span the entire length of the lower lens. Also, unlike bifocals, there is no visible line between each viewing area.
Based on your need for magnification, most commonly, progressives will start at a 0 magnification at the center of the lens and then slowly “progress” in magnification with a seamless, invisible design throughout as you move down towards the bottom of the lens with your line of view.
Many people confuse “bifocal” with “progressive,” but it is key to remember that bifocals have a visible line in the lens, while progressives do not.
So, which one should you choose?
In choosing between a bifocal lens or a progressive lens for your safety glasses, your needs simply depend on your preference, as no applications would justify one over the other.
Top 3 reasons for bifocal safety glasses
When it comes to bifocal safety glasses, here are a few reasons why this kind of safety reader is preferred:
- Easier adjustment for first-time wearers: Bifocal lenses have a distinct, visible magnification zone, making them easier to get used to, especially for workers new to reader lenses or those who don’t need a gradual transition between focal points.
- Most often a more affordable option: Bifocals are generally more budget-friendly than progressive lenses, making them a practical choice for outfitting large teams or managing PPE costs without sacrificing clarity or protection.
- Sharp, defined near vision for task-specific work: Because the reading portion is clearly defined, bifocals are ideal for jobs that require quick, frequent shifts between near vision (like reading gauges or labels) and distance, with no need to search for the "sweet spot."
Top 3 reasons for progressive safety glasses
When it comes to progressive safety glasses, here are a few reasons why this kind of safety reader is preferred:
- Edge-to-edge magnification for less eye fatigue: Because progressives have no line in the lens and run the entire length of the lower lens, the eye is able to more easily adjust to the changes in magnification. Not only does this help the wearer use their peripheral vision, but eye fatigue is mitigated due to less drastic eye corrections throughout the working day.
- Allows the wearer to find optimal magnification: Progressives will start at 0 magnification at the center of the lens and then slowly build up to varying degrees of magnification, with a +1.0 or +2.0 being the highest. For example, a +2 progression will include +.25, +.5, +1.0, +1.25, and +1.5 magnification, allowing the wearer to find their sweet spot.
- Reduces SKUs: Instead of having potentially several pairs of glasses for each magnification need, progressives offer all-in-one convenience, allowing you to reduce SKUs and consolidate your corrective eyewear inventory.
Note that if you are switching from a bifocal lens, it might take some time to get used to a progressive lens. Give your eyes 10-20 minutes to adjust to the difference.
Testing what’s right for you
If you aren’t sure what type of safety lens or magnification you need, try testing your options to see which one works best for you. Again, the types of magnification lenses mentioned here are not based on prescription options.
If you are looking for something more than a +2 magnification or are experiencing issues with your current lenses, it’s best to consult a medical professional. Options for over-the-glasses safety eyewear are also available for those with prescription glasses.
HexArmor® can help
From premium components to edge-to-edge optical clarity, HexArmor’s safety eyewear works to give wearers the highest durability, comfort, and fit on the market – and that goes for people who need corrective lenses, both in readers and over-the-glasses safety eyewear.
HexArmor® offers:
Progressive safety glasses:
- +1.0 progressive safety eyewear lenses on our VS300 frame, find your pair here.
- +2.0 progressive safety eyewear lenses on our VS300 frame, find your pair here.
Bifocal safety glasses:
- +1.5, +2.0, +2.5 bifocal safety eyewear lenses on our VūForce™ frame, find your pair here.
- +1.5, +2.0, +2.5 bifocal safety eyewear lenses on our VūFlight™ frame, find your pair here.
Over the glasses safety glasses:
Plus, all of HexArmor's safety eyewear is Z87+ approved, so you know you're getting the best eye protection on the market - see our safety eyewear technology.
Let us know if you need help - our Solution Specialists are ready to work with you. Call 1-877-MY ARMOR or send us a message.
Browse all HexArmor® eye protection
Don’t forget to share this post!