Spring has sprung. The weather is getting nicer. Time for a new pair of sunglasses?  It was time for me. Even though sunglasses are not a regular topic of our lighting blog, I felt that my recent experience picking out new sunglasses warranted this post. I was disappointed at the number of myths about sunglasses that were told to me by multiple, yes, multiple, supposedly knowledgeable sales people. So, I figured that it might prove useful to others if I shared my experience and busted these myths with this sunglasses buying guide. 

Myth #1: UV Protection In Sunglasses Not Important

Fact: The sun’s ultraviolet (UV) rays can do several very bad things to your eyes and the area around your eyes: harm the lens, retina, and whites of your eyes, cause corneal sunburn and blisters, increase your chances of getting cataracts, have been linked to macular degeneration (vision loss due to damage due to a small spot near the center of the retina called the macula), cause skin cancer around your eyes including your eyelids, and help cause unwanted wrinkles and skin thickening around your eyes. WOW!  There’s a lot more but it would take more than this short response to get even more technical.

Myth #2: Sunglasses With Glass Lenses Remove All UV Radiation

I visited a small boutique optometry store and spoke to someone with 40 years of experience. He told me that if a pair of sunglasses has glass lenses, then they remove all UV radiation. Not true.

Fact: Glass of almost any kind (building windows, car windows, a pair of clear glasses) can remove some but not all of the UV radiation that reaches your eye. Ultraviolet (UV) radiation is made up of three segments: UVA, UVB, and UVC. Fortunately for all of us UVC radiation is blocked by the earth’s atmosphere, ordinary glass blocks out UVB radiation (the main sunburn ray that causes skin cancer and sun damage) but allows UVA to pass right through (UVA rays penetrate the skin more deeply and can also cause skin cancer, wrinkles, and premature skin aging). However, it is possible to add a special UV-blocking film to ordinary glass or use specially formulated glass (or plastic) to block out 99.9% of UVB and UVA radiation.

Myth #3: Polarized Lenses Also Mean UV Protection

Two representatives in the optical department of a national chain of retail stores told me that if a pair of sunglasses has polarized lenses, then they also provide UV protection. Not true.

Fact: These two features of sunglasses are entirely different from one another; one feature does not imply the presence of the other feature. Polarized lenses minimize direct and indirect glare from the sun; they allow you to see more clearly when the sun’s rays are reflected off flat, smooth surfaces like water, road pavement, and car hoods. Polarized lenses are not designed to reduce the ultraviolet radiation that reaches your eye.

Myth #4: More Expensive Sunglasses Have The Best UV protection

Fact: This is not always true. Relatively inexpensive sunglasses can sometimes block 99%-100% of UV radiation but they are not easy to find. However, you should be careful about still another problem – inexpensive sunglasses sometimes are non-uniform in thickness and have poor optical quality. This can mean that they sometimes distort the shape or clarity of an object, depending on what portion of the lenses that you look through.

Myth #5: Sunglass Tint Is Not Important

Many people think that the tint of the sunglass lenses is not that important. That it is purely an aesthetic decision based on your personal preferences and the “cool factor” you’re looking for.

Fact: The tint or hue of the sunglass lenses plays an important role in the perception of colors. Yellow or rose tinted lenses generally can make it difficult to distinguish different colored traffic lights. Gray, green, and brown lenses, however, minimize color distortion and are a better choice when you’re driving a vehicle. Some specialized sunglasses can have a special tint that are designed to enhance your performance of a specific task or sport; e.g., at least one sunglasses manufacturer has created a whole array of lens hues, one of which can possibly improve your tennis game by enhancing the color of the tennis ball.

Myth #6: Size Of Sunglasses Not Important

Most people choose the size of their sunglasses on whether or not they think they look “cool.” Thus, they think that size is not important.

Fact: Size, at least when it comes to sunglasses, does matter. It’s this simple: The larger the sunglasses, the broader the protection of your eyes, eyelids, and the skin around your eyes against UV damage. However, you can have all of that and still look “cool.”

Enjoy your spring and summer and enjoy your new sunglasses.

It's no mirage – energy efficiency is gaining traction. Whether people are concerned about contributing to climate change by burning fossil fuels or saving money on their utility bills, there is rising demand for homes that can do more with less. Home builders are paying attention, and the new house of today is demonstrating different priorities from the residential construction of the past few decades. Among the ways that efficiency trends are playing out are an increase in low-maintenance yards, modern lighting and multi-generational living.

A Watershed Year for Efficiency

People really are paying more attention to their energy consumption these days. A study by Johnson Controls found that interest in energy efficiency had risen across North America by 116 percent between 2010 and 2014. The report called 2014 a “watershed year for energy efficiency” and that “strong improvements in key indicators signal major commitments to energy efficiency, high performance buildings, distributed energy systems and smart building technologies.”

Contractors are taking note of the heightened focus on efficiency and are adjusting their building components accordingly. "Being more energy efficient is extremely important to our home buyers,” Anthony Natale, co-founder and president of Grenadier Homes in Texas, said in a press release. “They're fiscally and environmentally responsible – savvy, sophisticated buyers who want to save money on utility costs while helping to save the planet for their children, grandchildren and beyond."

Keep an Eye on Water and Electricity

One aspect that Natale highlights is a move toward low-maintenance yards that need little in the way of irrigation or other care. A key component of these yards is using native plants, which are accustomed to the local climate and don't need much help to thrive. Another strategy is to integrate rain collection systems so you have water on hand when you need it without breaking out the hose. Also, efficiency-minded homeowners design landscaping in a way that reduces runoff and takes advantage of plants' natural preferences for shady or sunny areas.

In addition to conserving water, homeowners are also reducing their electric bills with LED lighting technology. LED lights last up to 25 times as long and only use 25 percent as much electricity as those old-timey incandescent bulbs. Initially, some consumers shied away from LEDs because of their high initial cost and limited utility, but technological advances mean that you can now find affordable LED solutions to just about any lighting setup you can think of.

Sharing Space with Grandma and Grandpa

One more recent trend in efficiency is a bit more surprising – a rise in multi-generational households. A 2014 study by the National Association of Realtors Home Buyer and Seller Generational Trends found that households that included some combination of parents, adult children, adult siblings and grandparents comprised 14 percent of sales.

The savings are clear – fewer homes means less redundancy in heating, cooling, lighting and other energy-consuming necessities. New homes built to take advantage of this trend can offer separate entrances and suite-like setups in different areas of the house so residents can maintain their privacy while still sharing the structure.

If you want to cut back on your own energy usage but aren't prepared to invite grandma and grandpa home just yet, have a home services professional conduct an energy audit and create a tailored efficiency plan that's right for you.