When you’re thinking about possible damage from the sun this summer, don’t just focus on your skin. The sun is also a serious threat to your eyes and the delicate skin that surrounds them. You need sunglasses that have been treated to block ultra-violet (or UV) light from reaching your eyes. Think of them as sunblock for your vision!
You need UV sunglasses because the effect of UV light on your eyes will grow over time. The longer we spend in the sun over time, the greater the danger of damage will be.
Look for a pair of sunglasses that has been specifically designed for UV eye protection and are rated UV400 or higher. This rating means that the glasses will block almost 100% of any UV rays you are exposed to. The lenses should also be polarized, which helps to neutralize any harmful glare.
There are two kinds of ultraviolet rays that we should be concerned about: UVA and UVB.
- UVA rays pass through the eye’s cornea to reach the lens and retina inside. Overexposure to this kind of radiation has been linked to the development of macular degeneration, which is damage to the retina that causes loss of central vision, and some kinds of cataracts, which are a clouding of the lens leading to decreased vision.
- UVB rays are partially filtered by our ozone layer, but are themselves more intense than UVA rays. While penetrating less deeply, they are completely absorbed by the cornea, and in short term doses have been known to cause “snow blindness” – a painful inflammation of the cornea that will cause temporary vision loss.
As you can see, we all need to wear UV sunglasses! They are the best way to protect your eyes when you’re outside. Purchase a brand that you know you can trust, or check with your optician to see what brand would work best for you. There is a wide variety of eyewear on the market for all tastes and styles; you should have no trouble finding the perfect pair that suits you to a tee.
You can contact us here at Classic Vision Care for help with all your vision needs. Call us today!