Cheaters glasses are inexpensive, non-prescription reading glasses you can buy off the rack at drugstores, grocery stores, or online. The nickname “cheaters” comes from the idea that they let you cheat your way past blurry close-up vision without a trip to the eye doctor. They’re also called “readers” or “drug store readers,” and they all do the same thing: help you focus on nearby text and objects when your eyes can no longer do it on their own.
Why You Need Them: Presbyopia
Cheaters exist because of a universal age-related change called presbyopia. Starting around age 40, the natural lens inside your eye gradually thickens and stiffens. Your lens works like a camera’s autofocus, flexing to shift between distant and close-up vision. As new cell layers form on the lens over time (picture an onion growing), it loses that flexibility. Light stops landing properly on the retina, and close-up objects go blurry.
Presbyopia gets progressively worse until your mid-60s, which is why people who start with weak cheaters in their early 40s often find themselves reaching for stronger ones every few years. This isn’t the glasses making your eyes worse. It’s the lens continuing to stiffen on its own schedule.
How Cheaters Actually Work
Each pair of cheaters has a diopter rating, the “+” number printed on the tag (like +1.50 or +2.25). A common misconception is that cheaters magnify text, making it physically larger. They don’t. What they actually do is bend incoming light so that it focuses correctly on your retina at close range. The effect feels like magnification because blurry text suddenly snaps into sharp focus, but if you compare the text size with and without the glasses, it’s essentially the same.
Every diopter strength has a “sweet spot,” a specific distance range where things look clearest. A weaker pair pushes that sweet spot farther from your face, while a stronger pair pulls it closer. If you pick the wrong strength, you’ll either find yourself holding your book uncomfortably far away or uncomfortably close.
Choosing the Right Strength
As a general starting point, diopter strength correlates with age:
- Ages 40 to 45: +1.00 to +1.50
- Ages 45 to 50: +1.50 to +2.00
- Ages 50 to 55: +2.00 to +2.50
- Ages 55 to 60: +2.50 to +3.00
- Ages 60 and older: +3.00 to +3.50
These are rough guidelines, not exact prescriptions. The best way to find your strength is to use a printed diopter test chart held 14 inches from your face (without any glasses on). Read from the top line down. The first line of text you can read clearly indicates your strength. Many brands offer free printable charts on their websites.
If you’re testing in a store, try pairs that are 0.25 diopters above and below what you think you need. Read actual material, a book, your phone, a receipt, rather than just the store display card. Pick the lowest strength that gives you clear vision. Going stronger than necessary can cause eye strain and force you to hold things uncomfortably close.
Signs You Might Need a Pair
The classic sign is “trombone arm,” holding your phone or a menu at arm’s length to bring the text into focus. But there are subtler signals too. You might notice headaches above your eyebrows after reading, a tired or strained feeling in your eyes after computer work, or the habit of squinting at labels and receipts. If you’ve started bumping up the font size on your phone or zooming in on documents, that’s another giveaway. Some people notice that both distance and near vision feel slightly off, though the close-up blur is usually more noticeable first.
What Cheaters Can and Can’t Do
Cheaters correct for one thing only: the loss of close-up focus from presbyopia. Both lenses have the same strength, and they provide no correction for astigmatism, nearsightedness, or farsightedness. Astigmatism, where the cornea has an irregular curve, requires a specially shaped lens called a cylindrical lens that’s custom-made to match the specific steepness of your cornea. That’s only possible with a prescription.
Over-the-counter readers also use a single standard distance between the lens centers, which may not match the distance between your pupils. If the mismatch is significant, you might experience eye strain or slight double vision, especially with stronger diopters. For people whose eyes are roughly the same and who don’t have astigmatism, cheaters work perfectly well. For everyone else, prescription reading glasses are a better fit.
Will Cheaters Damage Your Eyes?
No. This is one of the most persistent worries about over-the-counter readers, and it’s unfounded. Corrective lenses of any kind, whether prescription or off the shelf, do not weaken or damage your eyes. If you notice you need a stronger pair after a year or two, that’s presbyopia progressing naturally, not a consequence of wearing the glasses. Your lens would have stiffened the same amount whether you wore cheaters or not.
Do Blue Light Coatings Help?
Many cheaters now come with blue light filtering coatings, marketed to reduce eye strain from screens. The evidence doesn’t support these claims. A 2023 Cochrane review (the gold standard for medical evidence) analyzed 17 randomized controlled trials and found that blue light filtering lenses made no meaningful difference to eye strain, visual performance, or sleep quality. The American Academy of Ophthalmology has stated that digital screens don’t emit harmful levels of blue light in the first place.
Standard blue light lenses block only 10 to 25% of blue light anyway. Versions that block more require amber or red tinting that distorts color perception. Eye strain from screens is real, but it’s caused by how we use screens (staring without blinking, sitting too close, reading for hours without breaks), not by the light they emit. A pair of cheaters without the blue light coating works just as well.