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How Does Polarized Sunglasses Protect Your Eyes?

by MoralStory Editorial Team
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Polarized Sunglasses Protect Your Eyes

For the numerous benefits we derive from the sun, its light can cause some serious health issues. Sunlight sparkling on smooth water, flat roads or snow can cause glare, which is not only irritating, but can have a long-term effect on your vision like causing cataracts. Also, blinding glare from the sun and snow blindness can cause sunburn to your eyes.

Luckily, polarized sunglasses can help protect your eyes against this hazard of severe sun glare.

In this article, we will explore how polarized sunglasses protect your eyes, including how polarized sunglasses work, and what polarized sunglasses are best for.

To get started, let’s look at what polarized sunglasses are.

What are Polarized Sunglasses? 

Polarized sunglasses are glasses that help prevent eye strain due to excessive glare (bright lightening that enters the eyes and interferes with vision) when in the sun or close to a reflective surface.

Light can reflect from various surfaces, such as snow or water, thereby irritating and temporarily worsening your vision. Polarized sunglasses are suitable for those that spend most of their time outside as they tend to be consistently exposed to sunlight. Whether for play or work, polarized sunglasses can provide you comfortability and better clarity as you go about your daily activities.

These sunglasses are beneficial all year round, whether you’re around snow, water, or even on a cloudy day. Plus, special coating can be applied on prescription sunglass to polarize it. This will help eradicate glare and illuminate the images you’re seeing through your lenses. The lenses work by transmitting the vital information and sieving any light that makes it difficult to see.

The Benefits of Polarized Sunglasses for Your Eyes

The Benefits of Polarized Sunglasses for Your Eyes
Image Source: Pexels

Polarized glasses are one of a handful of glasses options when it comes to protecting your eyes in sunlight. Here are some benefits of these glasses:

1.   Reduced Glare

In the best-case situation, glare is disturbing. In the worst case, it can be risky. Recent research shows that traffic accidents, especially crossroads collisions, happen more often when the sun is at the best possible angle to generate glare. Thus, polarized glasses protect your eye by reducing the light glare around you, whether it’s directly from the sun, water, or snow.

Your eyes require adequate protection whenever you’re spending time outdoors. The filters put on polarized sunglasses greatly reduce entering glare. This reduction can assist you to improve concentration and see better whenever you are exposed to direct sunlight and are handy when driving. 

Normally, polarized glasses will have a built-in UV guard which is highly essential in a pair of sunglasses. Overall, by limiting glare with your prescription sunglasses, you can be more aware of your environment, which could assist you in evading accidents and injuries.

2.   Improved Clarity

Another advantage of polarized glasses, particularly polarized prescription glasses is that they give contrast and clearer vision. The lenses are made to sift bright light. The filter used in obstructing horizontal light rays enables you to see clearly and the difference between objects is improved as minimal light is going into your eyes.

Even when glare isn’t a safety concern, it can affect your ability to see clearly. Outdoor enthusiasts and sportspersons often use polarized sunglasses so they can see with a higher level of accuracy.

Overall, without the glare, you will be able to see more clearly. Also, the lenses will increase the contrast and visual clarity.

3.   Prevent Fatigue

Glare from the sunlight can result in fatigue. Glare compels your eyes to work harder while they attempt to deduce the data they’re taking in. This form of hard work or overwork is also known as eye strain, making your eyes sore, exhausted, or unable to remain open.

Hence, polarized sunglasses protect your eyes by minimizing glare; this ultimately prevents your eyes from fatigue.

Difference Between Polarized Glasses and Non-Polarized Glasses

Light moves in waves, meaning it vibrates when traveling. This vibration is usually in one direction; hence, it becomes concentrated, going directly into the eye. This is known as concentrated light, “glare.”

The distinction between polarized and non-polarized glasses is how they handle glare. Let’s examine this difference more closely.

  • Non-Polarized Glasses

Non-polarized sunglasses are made to minimize light intensity of any form. If your glasses provide UV protection, they probably have special pigments and dyes that take in ultraviolet rays, stopping them from getting into your eyes.

Nevertheless, this technology applies to all kinds of sunlight, regardless of which direction the light vibrates. As such, glare will still enter your eyes with high intensity compared to other light, thereby, affecting your vision.

  • Polarized Glasses

Polarized glasses on other hand are designed with a treated chemical that sifts out light. But, the filter is applied vertically, so to allow vertical light to pass through, while horizontal light is blocked.

For instance: envision a picket fence with one inch between each slat. If you hold it straight up so it’s vertical, you could slide a stick easily between the slats. But if you turn the stick horizontally (flat), it cannot fit between the fence slats.

That is the idea behind polarized glasses. While vertical light can make it through the filter, horizontal light that causes glare, which affects the eyes, is unable to pass through.

What Are Polarized Sunglasses Best For? 

Polarized sunglasses are ideal for daily use. However, they benefit outdoor hobbyists such as sportspersons, motorcyclists, skiers, beachgoers or those that live in snowy environments more. Polarized sunglasses are great for the following situations: 

  • Fishing
  • Boating
  • Golfing
  • Snowy Weather


Polarized glasses are an excellent option for people that spend lots of time outdoors. They do not just minimize unwanted glare and bright reflection; they help enhance vision clarity in bright circumstances, and they are comfortable options as well.

However, it’s worth noting that polarized sunglasses will not protect your eye from gazing at the sun directly. So, always take precautionary measures to guard your eyes from ultraviolet rays’ damage, even if it’s not really bright outside. This is why cool prescription glasses that are specially coated (polarized) are highly recommended. These sunglasses provide 100% UV protection anytime you wear them in the sun.

Overall, whatever you do, always remember to protect your eyes from ultraviolet rays (UV). Buy prescription sunglasses that are polarized and wear them anytime you go into the sun. These glasses will ultimately keep your eyes healthy in sunlight.


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