Anti-fatigue lenses reduce eye strain from digital screens by providing a subtle vision boost near the bottom of the lens. This makes it easier to use phones, laptops, and tablets throughout the day without headaches or sore eyes.
To get the full benefits of the design, you’ll need the right lens materials for anti-fatigue lenses. This guide explores the best options and the science you’ll need to make the ideal selection.
Visual professionals use the Abbe value to measure a material’s resistance to chromatic aberration. A higher Abbe value means better clarity and less distortion, and a lower Abbe value means more color fringing and increased eye strain.
Since a higher Abbe value means lower strain, anti-fatigue lenses have a high Abbe value. They’re designed to provide a smooth visual transition between the main distance power and the subtle power boost. If the material introduces color fringing or peripheral blur, the eye has to work harder to compensate.
Lenses with lower Abbe values are more lightweight and feature strong impact resistance. They’re useful in applications like sports and children’s eyewear, but are a poor fit for anti-fatigue lenses, given their limitations.
Because anti-fatigue lenses demand a high Abbe value, some materials are a better fit for them than others. Here are two best-in-class options to consider based on your visual needs.
Trivex is the ideal lens material for most anti-fatigue eyewear. It’s a strong all-around option that offers:
Anti-fatigue lenses depend on smooth transitions between the main power of the upper lens and the lower boost zones. Trivex is perfect for this, offering the smooth clarity you’ll need to maintain eye comfort throughout extended digital sessions.
Those with higher-level prescriptions typically need specialized high-index lenses for the best anti-fatigue results. High-index lens options keep your glasses thin and lightweight, while offering the stronger level of correction you’ll need to maintain clarity.
High-index (1.67 and 1.74) lens options are ideal for strong prescriptions because:
The downside is that high-index plastics have lower Abbe values than Trivex. This means there’s more potential for color fringing and distortion. But for strong prescriptions, the thinness of high-index lenses outweighs this drawback. They can also be paired with a high-quality, anti-reflective coating for added glare support.
If you’re choosing between these options, 1.67 offers a strong, balanced prescription, while 1.74 lenses are thinner and reduce bulk. You may want to talk to your optometrist before choosing.
Polycarbonate is one of the most widely used materials in many eyewear categories. However, it’s not a good fit for anti-fatigue lenses.
Polycarbonate has one of the lowest Abbe values of all modern lens materials. This means, compared to Trivex and high-index options, it allows:
This works directly against the main purpose of anti-fatigue lenses. Instead of reducing eye strain, it forces the visual system to work harder. So, there’s rarely a situation where it makes sense to use polycarbonate in this type of eyewear.
If you were to try polycarbonate anti-fatigue lenses, you would notice a few problems. The distortions this material introduces could increase your eye fatigue and decrease clarity. You might also notice difficulty adapting to the lower boost area, causing further strain and unwanted side effects.
Choosing the right lens material is an important first step for comfort during digital use. But it’s not the only step you can take. Many people combine their anti-fatigue lenses with one of the following two coatings for improved performance.
First, digital devices emit blue light that can contribute to glare and visual fatigue during use in dark settings. Blue-light filtering materials and anti-reflective coatings with high-energy visible (HEV) solve this problem.
The coating can reduce glare and improve contrast during screen use. This supports the eye more effectively as you engage with screens, which should reduce symptoms like headaches and sore eyes at the end of the day.
AR coatings are also a great fit for anti-fatigue lenses. They help by:
RX-Safety offers a wide variety of lens coating options for further customization. Review our scratch-resistant and anti-reflective lens options to learn more.
The frames you choose can also impact how well your anti-fatigue lenses perform. For example, Trivex maintains strong clarity even when the lens is shaped into curves. That makes it a good fit for wraparound safety frames, sports glasses, and protective eyewear for industrial settings.
High-index lenses can also work in a variety of frame types. RX-Safety offers them in modern styles, minimalist frames, and larger frames where reducing lens weight is important.
Choosing the right material is an essential step in unlocking the benefits of anti-fatigue lenses. For most people, that means Trivex, as it offers the best combination of clarity and comfort.
But if you have a higher prescription, a 1.67 or 1.74 high-index material is likely a better fit. These are thinner and lighter than high-index Trivex lenses, and they give you a more comfortable wearing experience. If you’re ready to upgrade your visual comfort, RX-Safety’s experts can help you find the optimal lens materials and coatings for your new anti-fatigue eyewear. Explore our shop to find your ideal combination today.
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