Which is better: polarized or gradient sunglasses?
When it comes to effectively shielding your eyes from the sun, there are plenty of sunglass options to suit your specific needs, including polarized and gradient lenses. So, what is the difference between polarized vs gradient sunglasses?
Polarized sunglasses utilize a laminate filter that reduces glare and minimizes eye strain, whereas gradient lenses feature a gradual shift in tint from (generally) darker at the top to lighter at the bottom.
Before you purchase a new pair of shades, let’s explore the key differences between polarized and gradient sunglasses, and which option will suit you best.
Polarized vs. gradient lenses
Polarized and gradient lenses both offer plenty of benefits, but there are instances in which you’ll definitely want to reach for one over the other.
Here are some key considerations:
Environment: Polarized sunglasses are best for high-glare settings, such as water, snow and pavement. Gradient lenses may be preferred for afternoon sun and daytime driving as they tend to block more glare from overhead.
UV protection: Neither lens coating offers on its own is better at blocking the sun’s damaging UV rays, so look for UV400 protection, as nothing is more important in sunwear than safeguarding your vision.
Cost: High-quality polarized lenses tend to be more expensive than gradient lenses, but price also will depend on the style and brand.
Versatility: Gradient lenses are generally more versatile, while polarized lenses may be too dark in some settings.
How do polarized lenses work?
When polarized sunglasses are manufactured, a chemical laminate with a vertical pattern is applied to the lenses. When sunlight strikes flat surfaces, the reflected light beams travel in a horizontal direction, intensifying glare and reducing visibility.
Polarized sunglasses block the horizontal rays as they won’t fit through the vertical laminate pattern, similar to how window blinds work.
Because polarized lenses provide superior glare protection, they’re a great choice for anyone who enjoys outdoor activities especially around water and other glare-prone surfaces.
When wearing polarized performance sunglasses, harsh glare is eliminated and image details are easier to see clearly.
However, there are some instances in which polarized lenses aren’t beneficial. For example, polarized lenses can make it difficult to read LCD screens, such as auto dashboard screens.
Polarized lenses also can clash with certain tints on windshields, so they aren’t always the best choice for driving sunglasses. The darkened polarized lenses also may cause eye strain in low-light situations.
It’s best to use polarized sunglasses in high-light outdoor activities. But even then, there are instances in which gradient sunglasses could be a better choice.
KNOW WHAT KIND OF SUNGLASS LENSES YOU WANT? Shop for sunglasses at a nearby optical store or online at an eyewear retailer.
How do gradient lenses work?
Gradient lenses are tinted, usually from the top down, with the darkest portion at the top gradually fading to either minimal or no tint at the very bottom.
There are also double gradient lenses with a darker tint on the top and bottom of the lenses and the lightest tint in the middle. There are also double- and triple-gradient options — these lenses don’t just fade from dark to light but from one color into another.
While polarized lenses are best for bright, high-glare activities, gradient lenses are typically the best choice for driving and time spent in overhead sunlight, as the lenses shield from the top while still allowing you to comfortably see through the middle of the lens.
Also, if you find that some polarized sunglasses are too dark, double-gradient lenses can shield your eyes from bright light and other reflective surfaces from the ground while maintaining less altered vision through the middle of the lenses.
Do polarized lenses offer better UV protection?
While polarized lenses may be the best option for minimizing glare and eye fatigue, it doesn’t mean they’re better at shielding your eyes from harmful ultraviolet rays. In fact, polarization has no effect on UV protection.
For maximum effect, it’s best to ensure your sunglasses, polarized or otherwise, offer 100% UV protection.
Also, while polarized has become synonymous with high-quality sunglasses, it’s always best to do your research before making a purchase as not all polarized lenses are created equal.
The best polarized lenses have the laminate applied between layers of lens, while the cheaper versions are laminated only on the back or front of the lenses, making them prone to wear and tear.
Can you get polarized gradient sunglasses?
If you’re torn between polarized and gradient lens coating options, gradient polarized sunglasses may be just what you’re looking for.
The gradient tint will shield your eyes from overhead sunlight and the polarization will help eliminate road glare, making them a great choice for driving and other activities in bright sunlight.
While polarized and gradient lenses are widely available, polarized gradient sunglasses may require a little more searching.
POLARIZED, GRADIENT, OR POLARIZED GRADIENT LENSES? Shop for the perfect sunglasses at a local optical store or online retailer.
Page published in March 2020
Page updated in November 2021