Sun Protection

Sun Protection for Your Eyes

Sunglasses are defined on Wikipedia as: “Allowing for better vision in bright daylight, and may protect one's eyes against damage from excessive levels of ultraviolet light. Typical sunglasses lenses are tinted for protection against bright light or polarized to remove glare; Photo chromatic glasses are clear in dark or indoor conditions, however darken when in they come in contact with Ultraviolet light outside. Most over-the-counter sunglasses do not have corrective power in their lenses; however, special prescription sunglasses can be made.” Sunglasses are protection for harmful ultraviolet (UV) rays as well as reduce eyestrain in bright sunlight or overcast cloudy days. Finding the correct lenses that meet your needs and provide comfort and safety are the key to any sunglass purchase.

At eSunsations we offer a large variety of sunglass prescription and non prescription lenses. Which ones are best for you will depend on your daily activities and needs. Sunglass lenses vary from those that have solid colors like gray, brown & green, those that change colors, called photochromic, mirror coated lenses as well as polarized sun lenses. eSunsations carries all of the above.

Sunglass Types 

Polarized & Polarized Gradient lenses: Polarized lenses are an outstanding product for those that seek substantially glare reduction. Polarized lenses can diminish the visibility of LCD readouts like watches and cell phones. Should this be a concern standard colored lenses, such as gray or brown or mirrored lenses, may be a good alternative.

Photochromic lenses: are defined on Wikipedia as “optical lenses that darken on exposure to specific types of light of sufficient intensity, most commonly ultraviolet (UV) radiation. In the absence of activating light the lenses return to their clear state. Photochromic lenses may be made of polycarbonate or other plastic materials. They are principally used in eyeglasses that darken in bright sunlight, but clear in low ambient light conditions. They darken significantly within about a minute of exposure to bright light, and take somewhat longer to clear. A range of clear and dark transmittances are available.”


Sunglass Lens Colors & Coatings 

Standard lens colors allow different amounts of visible light to reach your eyes. Depending on the color you may choose will determine how you see the world when looking through them and how well you see color contrasts. Standard

Sunglass Lens Colors: Gray, Brown or Green any of these may be ideal colors for most outdoor activities. These colors will help to reduce glare and eyestrain for many people in normal sunny conditions. Gray has been considered the best color to allow you to see normal colors when looking through them. Green is also a good color that will not distort visual colors. Brown lenses normally brighten up the world when viewing through them.


Lighter Sunglass Colors: Yellow or Rose: lighter sunglass colors are fine in lower level light conditions. Many people who skiing or snowboarding like the lighter colors that provide very good depth perception and brighten up their surroundings. However, please be aware that these lighter colors will not cut glare in very bright sunny conditions nearly as much as standard colors or polarized lenses mentioned above.

Mirrored Sunglass Coatings: refers to a reflective film added to the outside of lenses that reduces glare due to its technology to reflect glare away from your lenses. Mirrored coating can make object look darker than reality. Lighter colors are suggested to avoid this problem.

What is the difference between polarized lenses and transition lenses?

Transition lenses have the beneficial feature of being clear while indoors and turn to darker outdoors when exposed to UV or sunlight.  Transitions have UVA and UVB protection.  Basic transitions do not darken inside of a vehicle.  Polarized lenses are dark in color at all times.  Perfect for driving, sports persons, or fishermen.  Polarized lenses provide glare reduction, true color perception, clarity of vision and completely block UV rays, providing 100% UV protection – reducing potential vision damage.

What does gradient mean?

Gradient means there is a darker color on the top of the lens slower decreasing to clear from the bottom of the lens. Do transitions lenses have UV protection? Yes, transition lenses have UVA and UVB protection built into them.  However, for additional coverage you can add on a UV coating or purchase any (AR) anti reflection or Blue Light coating. 

Questions, contact us: hello@esunsations.com or 408-809-0232

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