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Have you ever forgotten your reading glasses when you’ve gone out for dinner and needed to read a menu? Do you struggle to see clearly when driving or at work? Adjustable focus glasses can help.
Adjustable eyeglasses are not perfect, but they are a convenient substitute when you need a visual fix. They won’t replace your regular glasses, but they work great in a pinch and make some activities much easier.
Adjustable glasses are a versatile and affordable solution to correcting minor vision problems. They compensate for presbyopia and other refractive errors like farsightedness and nearsightedness. They are non-prescription glasses designed for everyday use.
With traditional lenses such as bifocals and progressives, different portions of the lenses offer different types of correction. You’ll look through the top to look far away and look down for objects near you. With adjustable glasses, you have one focal length that varies depending on where you are looking.
These glasses feature adjustment dials for far- and nearsighted correction in one pair of glasses. This allows for adjustment to help with focus so wearers have improved vision whether they are reading, driving, or using their eyes in other ways.
Anyone can wear adjustable glasses, but they are especially beneficial for people who cannot afford regular glasses or for those living in areas where regular glasses are not accessible.
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There are a few different types of adjustable glasses.
Keep in mind, these glasses are similar to bifocals in that they allow wearers to see near and far. However, they are less expensive and available without a prescription.
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Adjustable reading eyeglasses have an adjustable focal length and compensate for refractive errors. They provide variable focusing, so you can adjust them for desired distance or prescription, or both.
They are great for reading because you don’t need to adjust the position of your eyes.
Adjustable focus glasses offer an adjustable focal length. This compensates for refractive errors, including presbyopia. They provide variable focusing, which allows you to adjust the glasses for seeing things close up or far away.
Adjustable focus reading glasses are the same as adjustable reading glasses. You adjust the dials of the glasses so you don’t need to reposition your eyes to see close up or far away.
Adjustable glasses correct refractive errors. These vision errors occur when your eye is shaped in a way that interferes with proper focus of the light entering the eye.
Myopia is a common refractive error. It impairs your ability to see far-off objects. It happens because the eyeball is too long or has too much cornea curvature. This causes vision to blur when you are looking at things in the distance.
Adjustable glasses feature fluid-filled lens technology that lets you adjust the power of the lens based on the correction level you need. You twist the dial until you achieve optimal visual acuity. This is why they are sometimes called dial vision glasses.
Each of the lenses on adjustable glasses has a membrane that moves outward or inward based on how much fluid the lens contains.
The liquid comes from a small syringe connected to each arm of the glasses. You move the dial to pump fluid in or out of the lens. As fluid enters the lens, the lens’s power increases. This corrects farsightedness. Pumping the fluid out corrects nearsightedness.
The function of adjustable focus glasses operates based on the same principle of natural vision ability. You change the physical shape of the lens, just as the physical shape of the eyeball affects vision ability.
Adjustable eyeglasses offer a variety of benefits, but they aren’t right for everyone. They offer convenience, but they tend to not work as well as prescription-strength glasses.
These glasses can be found at many retail stores and online from Amazon. Many of the benefits and drawbacks of adjustable glasses vary based on the brand, so make sure you research your options before choosing which option is best for you.
If you’re considering investing in a pair of adjustable glasses, consider the following:
Anyone needing visual correction benefits from variable focus or adjustable glasses. These glasses provide clear vision at an affordable price without a prescription.
Despite the benefits, these glasses aren’t for everyone.
One of the communities proven to benefit most from adjustable glasses is people, in particular children, living in low-income communities.
Multiple medical studies have shown that adolescence in rural China found that adjustable glasses improved vision for about 95% of the kids who received the glasses.
Statistics show that more than 100 million teens in the developing world have myopia, but more than half of them have no access to vision correction treatment and devices. Poor vision affects their quality of life and impacts their education, employment, and social lives. Adjustable glasses are an affordable option for communities that otherwise cannot afford vision correction devices.
Several different brands offer adjustable eyeglasses, including:
Eyejusters replace traditional reading glasses. The brand offers glasses that change focus with the simple twist of a dial. Glasses offer a strength correction range of +0.50 to +4.00. They offer durable and scratch-resistant unisex styles.
The company has offered adjustable reading glasses since 2016 and claims to replace all of your over-the-counter reading glasses. The dials on Eyejusters are hidden and don’t interfere with the look of the glasses.
They have two separate dials – one on each side – so you can attain the proper balance of focusing power. These glasses also come in a variety of colors, frame designs, and materials.
Dial Vision offers adjustable glasses for nearsightedness and farsightedness. They have dials on both arms for individual lens adjustment. There is no need for a prescription to buy these glasses and they are much more affordable than traditional prescription lenses.
Global Vision offers a wide range of affordable adjustable eyewear. These glasses are more functional than stylish. If you’re looking for a convenient option that allows you to see close and far away, these are a great option.
You can find Global Vision adjustable glasses for as little as $5 to $10 online. Most pairs cost less than $20.
Adlens offers adjustable glasses that feature a compound lens system. This lets you focus on objects at any distance without removing your glasses or adjust your eye position.
The technology features two thin, wave-shaped plates that slide across each other when you turn the knob on the frame of the glasses. The position of the two plates adjusts the overall power of the lens.
These glasses offer vision correction levels ranging from -6 to +3. They work well for reading or computer use and also help manage the fluctuating vision needs associated with certain health conditions, including diabetes.
Adjustable eyeglasses cost much less than traditional prescription vision correction. The average cost of adjustable glasses is about $25.
Some brands offer adjustable eyewear for less than $5 a pair.
“Self-Adjustable Eyeglasses: How One Man’s Vision Is Helping Others to See Better.” www.medicalnewstoday.com, 12 Nov. 2015, https://www.medicalnewstoday.com/articles/302550#The-future-for-self-adjustable-eyewear.
“Nearsightedness - Symptoms and Causes.” Mayo Clinic, 2018, https://www.mayoclinic.org/diseases-conditions/nearsightedness/symptoms-causes/syc-20375556.
Heingartner, Douglas. “Better Vision for the World, on a Budget.” The New York Times, 2 Jan. 2010, https://www.nytimes.com/2010/01/02/business/global/02glasses.html.
Nearsightedness: What Is Myopia. “Nearsightedness: What Is Myopia?” American Academy of Ophthalmology, Feb. 2019, https://www.aao.org/eye-health/diseases/myopia-nearsightedness.
“Presbyopia - Symptoms and Causes.” Mayo Clinic, 2017, http://www.mayoclinic.org/diseases-conditions/presbyopia/symptoms-causes/syc-20363328.
“What Is Presbyopia?” American Academy of Ophthalmology, 21 Feb. 2019, https://www.aao.org/eye-health/diseases/what-is-presbyopia.