Not All Lenses Are Created Equal
Just like with cars, shoes and so many other things in life, there are different versions and levels of eyeglass lenses. From the most basic lenses, that will correct your refractive error, but not much else, to premium lenses that can protect your eyes from glare, blue light and UV radiation, not all eyeglass lenses are created equal. Below are outlined some of the various features that can significantly enhance your eye health and vision comfort:
For many years now, polarized sunglasses have been a popular accessory for those looking to reduce glare while out on the road or in the water. Skiers, bikers, golfers and joggers are among enthusiasts that have discovered the advantages of these amazing lenses. Polarized lenses are great for reducing glare while driving, for safer vision while behind the wheel.
In explaining how Polarized lenses work, Dr. Trevor Miranda or Cowichan Eye Care in Cobble Hill, British Columbia says, “Light that reflects off of flat surfaces such as car hoods and snow on the ground, reflect onto the eye horizontally, meaning that it is not scattered in the normal fashion. This makes the light that is reflected quite intense sometimes causing momentary blindness, which can be dangerous in certain circumstances. Polarized lenses contain a special filter that blocks this intense horizontal light, significantly reducing glare.
Many people have heard of ultraviolet radiation and the damage it can cause to your skin. However, the damage that UV radiation can do to your eyes is less well known. Too much UV radiation can cause a “sunburn of the eye,” called photokeratitis, and excessive UV exposure over your lifetime can increase your chances of developing serious problems with your eyes later in life, such as age related macular degeneration and cataracts. Expert studies suggest that high quality UV protection can significantly reduce the amount of UV rays entering your eyes, reducing your risk of photokeratitis and long term damage.
Blue Light Protection
On average, each of us spends roughly 25 hours per week staring at the screen of an electronic device. This means that each of us spend more than one entire day, without sleeping, in front of devices that emit blue light that is proven to do serious damage to our visual system. Eyestrain, headaches and fatigue are common side effects. More alarming, recent studies show that blue light exposure has the potential to increase risk of macular degeneration significantly over time. Those with a history of macular degeneration are at special risk, as well as children, due to large pupils and shorter arms, which cause them to hold electronic devices closer to their faces, both of which allow more blue light to penetrate the eye.
Fortunately, cutting edge technological solutions to this growing epidemic exist. BluTech Lenses are special lenses specifically designed to selectively filter out blue light, enhancing visual comfort and minimizing eyestrain. These lenses boast a special state-of-the-art filtering agent within the lens material itself that duplicates elements in the eye, called ocular lens pigment and melanin, which the body naturally produces on its own, and which help filter out just the right amount of blue light entering the eye to protect against unfettered blue light penetration, while allowing proper visual contrast.
For more information about these and other special lenses, speak to Dr. Miranda at Cowichan Eye Care today.