UV400 Sunglasses

About UV400 Sunglasses

UV400 is a vital designation when it comes to sunglasses and their ability to shield your eyes from harmful ultraviolet (UV) rays. By selecting sunglasses labeled as UV400, you are ensuring that they block all light rays with wavelengths up to 400 nanometers. This level of protection is crucial as it effectively blocks 99 to 100% of UV light, safeguarding your eyes and the eyes of your loved ones from the damaging effects of UV radiation.

Taking proactive measures to protect your eyes is essential in preventing vision impairment and eye-related problems. Sunlight, particularly when engaged in outdoor activities like baseball, golf, or any sport without glare, can pose a significant risk. UV400 sunglasses serve as an ideal solution, offering optimal defense against vertical UV light and reducing the potential harm to your eyes. With UV400 shades, you can prioritize both eye protection and style, ensuring your eyes remain shielded in a fashionable manner.

Consider investing in a pair of UV400 sunglasses like the ones offered by Shari Dionne to protect your eyes with utmost care and sophistication. By embracing these sunglasses, you can enjoy your outdoor activities while minimizing the risks associated with UV exposure.

UV400 Protection Categories

UV400 tint levels

Shop UV400 SunglassesLook into the future of luxury eyewear by Shari Dionne


Black, Blue, Green, Ice Blue, Leopard, Orange, Purple, Tan, White, Red, Tan with gold, Tea with gold, Yellow

Everyday | UV400 Sunglasses


Black, Blue, Brown, Green, Silver

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Black, Brown, Clear, Pink


Black, Blackout, Brown


Black, Brown, Gradient, Ice Blue, Silver

What Are UV400 Sunglasses Good For

UV400 sunglasses are extremely good for outdoor sports, especially those played on grass.

Outdoor Sports

Whether you’re playing baseball, tennis, golf, cycling, or running, UV400 sunglasses are essential for athletes and sports enthusiasts. They help reduce glare and enhance visibility, improving performance and preventing eye strain caused by intense sunlight and bright outdoor conditions.

Everyday Outdoor Use

UV400 sunglasses are not limited to specific activities but are suitable for everyday use in various outdoor settings. Whether you’re walking in the park, running errands, or simply enjoying a sunny day, wearing UV400 sunglasses helps protect your eyes from UV radiation and reduce discomfort caused by excessive glare.


When exploring nature and spending time in the great outdoors, UV400 sunglasses are indispensable. They shield your eyes from harmful UV rays during long hikes, camping trips, and other outdoor adventures, ensuring eye comfort and protecting against potential eye damage from prolonged sun exposure.

What is UV400?

UV400 is the category which blocks all light rays with wavelength up to 400 nanometres. Sunglasses with this level of protection block an even wider spectrum than the CE and British Standard models, making them the ultimate protection for your eyes. That is, the designation UV400 with guaranteed UV protection protects against harmful UVB and UVA radiation.

  • Category 0. It is a clear or very light tiny lens used for impact protection. You can see it in many safety eyewear glasses on some construction sites. Category 0 also provides a minimal reduction of sun glare and slight UV protection.
  • Category 1. It is a typical yellow, pale, or light tint sunglasses. You can’t use it in sunny conditions, but it is excellent for overcast skies. This category can only provide limited protection against sun glare and UV protection. Thus, you can’t use it when driving in at night or under dull light conditions.
  • Category 2. It is a typical orange, rose, blue and red lens. You can get some adequate protection against sun glare and UV protection. Thus, it is safe to use driving or strolling in at night or under dull light conditions.
  • Category 3. It is suitable for strong sunlight and the most common kind of lenses. It consists of brown and grey-colored lenses. You can get high protection against sun glare and UV protection. You can use these sunglasses for leisure and fashion.
  • Category 4. It consists of very dark grey or brown lenses. You can use it in the mountains or deserts with intense sunlight. It is also ideal to use in places with high glare conditions, but not suitable for road use.

The risk of damage to our eyes and skin from solar UV radiation is cumulative: the danger continues to grow the more time you spend in sunlight over your lifetime. This starts at an early age. Children are at higher risk for UV damage to their eyes because they tend to spend more time outside. Therefore, it is best to invest in sunglasses that are labelled UV400 helps to block 99 to 100% of UV light and protect you and your loved ones’ eyes from UV rays

Things you need to know about UV400 Sunglasses

  • The darkness of your sunglasses has nothing to do with UV protection. It’s possible to buy a pair of dark-tinted shades that do not provide adequate UV protection. Getting these dark sunglasses that don’t block harmful rays will only help reduce your need to squint in bright light, but that’s about it. So while they may filter out ambient light and glare, the additional exposure to UV rays increases your risk for cataracts, macular degeneration and even development of ocular melanoma-a rare cancer.
  • If you spend a lot of time outdoors, playing sports like baseball and golf, or if you spend time hunting on land then UV 400 glasses are perfect for you.
  • Polarization has nothing to do with UV light absorption. Check the label or description of any sunglasses you want to purchase to make sure the lenses provide maximum UV protection.
  • You can tell whether sunglasses offer UV protection by checking if the frame features the CE or UV400 mark. Look for labelling that either says “100% protection against both UVA and UVB” or “100% protection against UV 400”. If you’re shopping online, it should be contained in the description of the product.
  • If you wear prescription glasses, you might consider adding a UV coating to your lenses so that your eyes are protected at all times.

How Do Sunglasses with UV400 Protection Work?

Sunglasses with UV400 protection work by incorporating specialized lenses that effectively block ultraviolet (UV) radiation. Here’s how they function:

  1. UV Absorption: UV400 sunglasses lenses are designed with materials that contain additives or coatings capable of absorbing UV radiation. These additives or coatings absorb the UV rays and prevent them from passing through the lenses and reaching your eyes. The lenses are formulated to absorb UV rays with wavelengths up to 400 nanometers, which covers both UVA and UVB rays.
  2. Polarization (Optional): While not directly related to UV400 protection, some sunglasses with UV400 designation may also feature polarization. Polarized lenses have an additional filter that helps reduce glare caused by reflected light, particularly from horizontal surfaces like water or roads. This polarizing filter selectively blocks certain light waves, resulting in improved visual clarity and reduced eye strain in bright conditions.
  3. Lens Material and Construction: Sunglasses with UV400 protection are typically made from high-quality materials that are optically clear and durable. Common lens materials include polycarbonate, acrylic, and CR-39. These materials are chosen for their ability to effectively filter out UV rays while providing excellent optical performance.
  4. Full Coverage and Fit: UV400 sunglasses are designed to provide sufficient coverage for the eyes and surrounding areas. They often feature larger lens sizes and wrap-around styles to minimize the amount of UV radiation entering from the sides. Proper fit and close contact with the face help block stray UV rays and further enhance eye protection.

It’s important to note that UV400 protection indicates that the sunglasses block 99 to 100 percent of UV rays up to 400 nanometers, including both UVA and UVB rays. This level of protection is considered to be the highest available for sunglasses and provides effective defense against the harmful effects of UV radiation on the eyes.

When choosing sunglasses, look for those specifically labeled as offering UV400 protection to ensure that your eyes receive optimal UV shielding and maintain long-term health and protection from UV-related eye conditions.

How Do UV Rays Work? The Dangers of UV Rays

How do UV rays work? A form of light that cannot be seen by the human eye, ultraviolet radiation is a component of the sun’s rays that enter our atmosphere. Similar to sunburn on the skin, excessive UV exposure can cause damage to the front surface of the eye. 

We know that frequent UV exposure without proper eye protection can cause long-term harm to the eyes. Normal eyesight can be severely impaired when the eye’s internal lens becomes obscured. 

Unprotected eyes exposed to the sun’s lengthy or strong radiation run the risk of developing conjunctivitis and corneal irritation. The worst-case scenario is that the lens might get hazy and the visual organ could sustain long-term damage.

Your priceless eyes may be shielded from dangerous ultraviolet radiation for a lifetime with UV400 protection, which is to almost 100% protection. Purchasing sunglasses with the UV400 designation will block 99–100% of UV rays. This grade guarantees that all light rays, including UVA and UVB rays, with wavelengths up to 400 nanometers are filtered out.

What is UV protection and How Sunglasses with UV400 Protection Can Help?

Sunglasses with UV protection prevent UV rays from entering your eye. The best sunglasses are UV400 ones that completely filter UV rays. You can entirely prevent UV exposure to your eyes with UV400 protection. Your eyes might be harmed both immediately and later on by prolonged exposure to harmful UV radiation. The long-term repercussions of not wearing UV400 protection might include cataracts, cancer of the eyes or eyelids, and damage to the retina.

Therefore, UV400 protection offers defense against more than simply the sun’s dangerous UV rays. It offers the most protection from harmful rays. In particular, it alludes to obstructing the aforementioned UVA and UVB rays, whose wavelengths can reach 400 nanometers. Therefore, you will be exposed if your protection level drops below 400.

And as we just mentioned, just because you’re in the shade or it’s a cloudy day doesn’t mean your eyes are safe. Even if you feel shame for wearing sunglasses at night, at least do so until the sun sets.

The Benefits of UV400 Sunglasses

UV400 sunglasses offer several significant benefits that contribute to the overall well-being and protection of your eyes. Here are the key advantages of wearing sunglasses with UV400 protection:

  1. Protection against UV Radiation: The primary benefit of UV400 sunglasses is their ability to block 99 to 100 percent of ultraviolet (UV) rays up to 400 nanometers. These sunglasses effectively shield your eyes from both UVA and UVB rays, which are known to cause various eye-related issues such as cataracts, macular degeneration, and photokeratitis (sunburn of the cornea).
  2. Reduced Risk of Eye Conditions: By blocking UV rays, UV400 sunglasses help minimize the risk of developing long-term eye conditions and disorders associated with UV exposure. These include age-related macular degeneration, pterygium (abnormal tissue growth on the eye), and certain types of eye cancers, such as ocular melanoma.
  3. Glare Reduction: UV400 sunglasses often feature additional benefits like polarization or anti-glare coatings. These features help reduce glare caused by sunlight reflecting off surfaces like water, snow, or roads. By reducing glare, these sunglasses enhance visual comfort, improve clarity, and decrease eye strain, particularly in bright outdoor environments.
  4. Enhanced Visual Clarity: UV400 sunglasses can enhance visual clarity and color perception by reducing the disruptive effects of intense sunlight. They help filter out excessive brightness, improving contrast and allowing you to see details more clearly. This benefit is particularly valuable during activities such as driving, outdoor sports, and leisurely outdoor pursuits.
  5. Eye Comfort and Reduced Fatigue: Wearing UV400 sunglasses can significantly enhance eye comfort and reduce eye fatigue, particularly in bright conditions. By reducing exposure to harsh sunlight and blocking harmful UV rays, these sunglasses create a more comfortable visual environment, allowing you to enjoy outdoor activities for extended periods without straining your eyes.
  6. Fashionable and Versatile: UV400 sunglasses are available in a wide range of styles, designs, and lens colors, allowing you to express your personal style while protecting your eyes. They can be worn for various occasions, whether it’s a day at the beach, outdoor sports, or simply strolling under the sun, making them a versatile accessory.

By investing in a pair of Shari Dionne UV400 sunglasses, you prioritize your eye health, minimize the risk of UV-related eye damage, and enjoy enhanced visual comfort and clarity in various outdoor settings.

Is UV Protection Good For Baseball Sunglasses

When it comes to choosing sunglasses for baseball, there are several key features to consider that can enhance your performance and protect your eyes from the sun. Here are some factors to look for when selecting good baseball sunglasses:

  1. Wraparound Design: Opt for sunglasses with a wraparound design that provides maximum coverage and prevents peripheral sunlight from entering your eyes. This design helps to reduce glare and improve your overall field of vision.
  2. UV Protection: Ensure that the sunglasses offer 100% UV protection to shield your eyes from harmful ultraviolet rays. Look for sunglasses with lenses that are labeled as providing UVA and UVB protection.
  3. Impact Resistance: Baseball is a fast-paced sport, and your sunglasses should be able to withstand potential impact from flying balls or accidental contact. Look for sunglasses made from durable materials such as polycarbonate lenses and sturdy frames.
  4. Lens Color: The choice of lens color is subjective and depends on personal preference and playing conditions. Some popular options for baseball include gray, brown, green, or amber lenses. Gray lenses provide true color perception, while brown, green, or amber lenses can enhance contrast and improve visibility on sunny days.
  5. Anti-Fog Coating: Look for sunglasses with an anti-fog coating or ventilation features to prevent fogging during intense physical activity or in humid conditions. This ensures clear vision throughout the game.
  6. Fit and Comfort: Proper fit is crucial to ensure that the sunglasses stay securely on your face during fast movements. Look for sunglasses with adjustable nose pads, rubberized temple tips, or wraparound features that provide a secure and comfortable fit.
  7. Brand and Reputation: Consider reputable sports eyewear brands that are known for their quality and durability. So choose Shari Dionne for you next pair of Baseball Sunglasses

Remember, it’s essential to try on different sunglasses to find the right fit and style that suits your individual preferences and needs. Additionally, consult with coaches, teammates, or professionals for recommendations based on their personal experiences and expertise in the sport.

How to Tell if the Sunglasses have UV Protection?

To determine if sunglasses have UV protection, you can follow these steps:

  1. Look for UV Protection Labeling: Check the sunglasses for any labeling or markings that indicate UV protection. Look for phrases such as “UV400,” “100% UV protection,” or “Blocks 99-100% of UVA and UVB rays.” These labels indicate that the sunglasses provide adequate UV protection.
  2. Check for Certification Symbols: Some sunglasses may display certification symbols or logos on the frame or lens. Look for symbols such as the “CE” mark (European conformity) or the “ANSI Z80.3” mark (American National Standards Institute) as they indicate compliance with specific UV protection standards.
  3. Visit the Manufacturer’s Website: If the sunglasses don’t have visible labeling or symbols, you can visit the manufacturer’s website or contact their customer support to inquire about the UV protection level of the sunglasses. Reputable manufacturers often provide detailed information about the UV protection capabilities of their sunglasses.
  4. Test with a UV Light Source: This method requires access to a UV light source, such as a UV flashlight or a UV testing device. Hold the sunglasses in front of the UV light and observe if any UV-reactive material is present. Some sunglasses have UV-reactive coatings or materials that change color or darken when exposed to UV light. If the sunglasses exhibit such a reaction, it indicates the presence of UV protection.
  5. Visit an Optician or Eye Care Professional: If you want a more accurate assessment of the sunglasses’ UV protection, consider visiting an optician or eye care professional. They have the tools and expertise to measure the level of UV protection provided by the sunglasses and can offer guidance based on your specific needs.

It’s important to note that the darkness of the lenses or the price of the sunglasses does not necessarily indicate their level of UV protection. Even lightly tinted lenses can provide adequate UV protection if they are labeled or certified appropriately.

By following these steps, you can confidently determine if the sunglasses you have or intend to purchase offer sufficient UV protection to safeguard your eyes from harmful UV rays.

How to Clean UV400 Sunglasses?

Although cleaning UV 400 sunglasses may seem like an easy job that doesn’t require instructions, there are right and wrong ways to do it, and if you don’t know how, you risk damaging your glasses.

  • First and foremost, always remove your spectacles using both hands. To maintain your glasses free of scratches and looking their best every day, we advise washing them first thing in the morning.
  • Rinse your glasses with a gentle stream of warm water from the tap. By doing so, you’ll get rid of the dust and reduce the chance of damaging your lenses while you clean them. Avoid cleaning glasses with hot water since it may harm some lens coatings.
  • Apply a specific glass cleaner on both sides of your glasses.
  • Use a wet wipe and rubbing alcohol to clean your eyewear’s nose pads and earpieces.
  • Thoroughly rinse the frame. Use a clean, lint-free towel that hasn’t been treated with fabric softener or dryer sheets to gently dry the lenses and the frame, or a microfiber cleaning cloth.

UV400 Sunglasses vs Polarized Sunglasses

Many of us need to be mindful of polarized sunglasses as well, since the industry is booming with trendy and fashionable UV sunglasses. However, a lot of us might not be aware of how they vary from one another.

By filtering damaging ultraviolet rays, UV sunglasses are designed to provide total UV protection. Polarized sunglasses, on the other hand, are made specifically to shield your eyes from damaging glares. These might even be dangerous blue lights. Not all polarized sunglasses provide UV protection, however some could.

In short, sunscreen is to the skin what sunglasses are to the eyes.  Polarized sunglasses are optional and a matter of personal choice, whereas UV protection is a need for your sunglasses in order to safeguard your eyes. Many of the sunglasses feature polarized lenses and complete UV protection, allowing you to have freedom to choose whatever style you want.

Do You Need to Wear Sunglasses With UV400 Protection?

No, but wearing sunglasses with UV400 protection is highly recommended for adequate eye protection against harmful ultraviolet (UV) radiation. Here are a few reasons why wearing sunglasses with UV 400 protection is important:

  1. Protection against UV rays: UV rays from the sun can cause damage to the eyes, including the cornea, lens, and retina. Prolonged exposure to UV radiation can increase the risk of various eye conditions such as cataracts, macular degeneration, and photokeratitis (sunburn of the cornea). UV400 protection ensures that the sunglasses block 99 to 100 percent of UVA and UVB rays, providing a high level of defense against these harmful rays.
  2. Reduced glare: Sunglasses with UV400 protection often have tinted lenses, which can reduce glare caused by bright sunlight. Glare can be particularly problematic while driving or participating in outdoor activities, as it can impair vision and cause discomfort. By wearing sunglasses with UV400 protection, you can enhance visual clarity and reduce the strain on your eyes.
  3. Comfort and eye strain prevention: Exposure to bright sunlight can lead to squinting and eye strain, especially when you’re outdoors for extended periods. By wearing sunglasses with UV400 protection, you can shield your eyes from excessive light and minimize the strain on your eye muscles. This can contribute to improved comfort and reduce the likelihood of headaches or fatigue caused by eye strain.
  4. Skin protection: Sunglasses with UV400 protection not only safeguard your eyes but also provide some protection for the delicate skin around your eyes. UV radiation can contribute to premature aging, wrinkles, and even skin cancer. Wearing sunglasses with proper UV protection helps shield the skin around your eyes from the damaging effects of the sun.

It’s important to note that not all sunglasses provide UV400 protection. When purchasing sunglasses, make sure to check the label or product description to ensure that they offer this level of protection. By wearing sunglasses with UV400 protection, you can better safeguard your eyes and enjoy the benefits of optimal eye health and comfort.

What You Should Know Before Buying Sunglasses With UV400 Protection

Embracing the practice of wearing UV400 sunglasses is a decision that can significantly benefit your eye health. However, it is crucial to exercise caution and ensure that the sunglasses you choose genuinely provide “UV400 Protection.”

Whether you are browsing online or examining sunglasses in a physical store, take the time to verify if the product explicitly states UV400 protection. Many sunglasses may claim to offer “UV protection” or “UV blocking,” but without the specific UV400 designation, they may not effectively shield your eyes from UV rays up to 400 nanometers.

Thankfully, the market offers an abundance of sunglasses that meet the UV400 protection standard. Hence, it is unnecessary to settle for anything less than comprehensive safety for your eyes.

In fact, opting for sunglasses without this level of protection can potentially do more harm than good. When you wear such sunglasses, your pupils naturally dilate to accommodate the reduced light, just as they would in dimmer surroundings. Regrettably, this means that more UV rays are entering your eyes compared to not wearing sunglasses at all.

Consequently, while you may experience reduced glare and ambient light, you are inadvertently increasing the risk of conditions such as macular degeneration, cataracts, and even ocular melanoma.

Therefore, prioritize sunglasses with UV400 protection to ensure optimal eye safety. By doing so, you can enjoy the benefits of diminished glare, enhanced comfort, and most importantly, significantly lower the potential for long-term eye damage.