Frequently Asked Questions About Sunglasses

February 17, 2019

Frequently Asked Questions About Sunglasses

Sunglasses are not only a stylish accessory but also a necessity if you truly care about protecting your eyes against harmful UV rays. Light from the sun and other forms of artificial light can actually cause damage and lead to eye-related health issues.

Thankfully, quality lenses and sunglasses, like the unique and upscale eyewear sold at Sun Optics, can help lessen your exposure to these harmful rays.

As the premier seller of luxury brand eyewear in South Texas, we are constantly asked about the importance of wearing sunglasses. Allow us to share with you a few of the most frequently asked questions we receive.

Questions You Might Have About Sunglasses

What are UV rays?

Ultraviolet rays have a higher frequency than visible light. The main source of UV rays is the sun.

There are three different forms of UV light:

  • UVA - These have longer wavelengths that can transmit through glasses. Scientists debate whether or not these rays have eye-damaging potential.
  • UVB - These waves are the most dangerous but cannot transmit through glass. Eye protection and SPF sunscreen should be used to protect your skin and your eyes from these types of UV rays.
  • UVC - These rays never reach the Earth because the atmosphere blocks them out.
  • Do I need to wear sunglasses even if my eyes are not bothered by the sun?

    Absolutely! Lenses can help to protect your eyes from the sun’s damaging properties. Over time, exposure to UV rays can cause issues like photokeratitis (temporary loss of vision), pinguecula (yellowish non-cancerous bumps on the sclera), and permanent retinal damage.

    When are my eyes most vulnerable to UV ray damage?

    It is a common misconception that cloudy days limit your risk of sun damage. This is false. Even if the weather is overcast, UV rays can still cause harm to your eyes. Also, while UV rays can cause eye damage at any time, rays are strongest between 10 a.m. and 2 p.m.

    Certain weather conditions can also contribute to eye damage. Snow, for instance, has strong reflective properties that can send heavy amounts of UV rays into your eye. This can lead to “snow blindness” which is when too much UV light hits the transparent outer layer of your eyes - the cornea - and essentially gives it a sunburn.

    Water and white sand can also have reflective properties that can cause photokeratitis as well.

    Can my medical condition put me at a higher risk for UV eye damage?

    Medical conditions such as cataracts, macular degeneration, and retinal dystrophies may lead to an additional risk of eye damage from UV rays.

    Should children also wear protective lenses?

    Children should also wear sunglasses because they are more likely to participate in outdoor activities where damaging UV rays are present.

    What are the different types of eye protection from UV light?

    Some contact lenses have UV protection, however, they leave parts of the eye exposed. Wearing sunglasses can protect the entire eye.

    You can find sunglasses that block 99 to 100 percent UVA and UVB light. UV400 sunglasses block all wavelengths up to 400 nanometers, which includes all UVA and UVB rays.

    What types of lenses are available?

    Blue Blockers - Sometimes known as tinted amber, this type of lens can reduce blue light, which is known to cause harm and can lead to diseases such as macular degeneration. These lenses are great for hunting, skiing and other outdoor activities.

    Polarized and Anti-Reflecting Lenses - These lenses cut reflected glare and are great for water and snow sports.

    Mirror-Coated Lenses - This coating helps lenses to limit the amount of light that enters the eyes. A variety of colors are available for you to customize to your liking.

    Gradient Lenses - These are tinted from darkest at the top to lightest at the bottom so that overhead sun is blocked but you still have clear vision underneath. This type is excellent for driving.

    Double Gradient - To protect from overhead sun and reflective light below, these lenses are tinted equally on the top and bottom, providing clear vision in the center.

    Photochromic Lenses - These lenses change levels of shade as you move from dark to highly lighted areas.

    Multifocal Lenses - If you have experienced some loss of sight that comes with aging, almost any type of lens can be made with progressive lenses (bifocals or trifocals).

    What color of lens should I get?

    This is purely up to your personal preference, however, neutral colors such as brown or grey distort natural color the least. Athletes may opt for colorful lenses for the contrast-enhancing effect.

    A beautiful pair of sunglasses with UV protection awaits you. Treat your eyes kindly, and protect against disease and damage by shopping with Sun Optics for a pair of shades that meets your health and style needs.

    Sunglasses can really save your eyes from UV damage. We have amazing shades from a variety of luxury brands that you’ll love.

    Visit us online or at any of our locations in Harlingen, McAllen, or Corpus Christi.