Did You Ever Wonder Which Type of Lens To Choose For Your Sunglasses?
Here are a few ideas that we have regarding sunglass choices. The Frame selection should be quite large and slightly wrapped around but not too much. If your glasses will be used for driving then do not choose something with wide temples as it will block off your peripheral vision. Wide sides are o.k for sports and Hicking Golfing etc.
To provide protection for your eyes, your sunglasses should:
#1 block out 99 to 100 percent of both UV-A and UV-B radiation; UV C is absorbed by the ozone layer and is not in the visible spectrum.
#2 screen out 75 to 90 percent of visible light;
#3 be perfectly matched in color and free of distortion and imperfection; and
#4 have lenses that are gray for proper color recognition
If you spend a lot of time outdoors in bright sunlight, wrap-around frames can provide additional protection from the harmful UV radiation.
There are different types of glare
Reflected Glare
Light reflecting from a flat surface to your eyes
Direct Glare
From the sun or oncoming headlights
Internal Glare
From the back surface of your sunglasses into your eyes
Usually from a reflective object behind you.
By adding a Multi Layer Anti reflection coating on the back side of your sunglass lenses, but not the front. You can increase the comfort of your vision and eliminate bounce back glare.
Researchers have not yet specifically determined how much exposure to UV radiation will cause how much damage, it is recommended to wear quality sunglasses that offer good protection and a hat or cap with a wide brim whenever you are working outdoors, participating in outdoor sports, taking a walk, running around or doing anything in the sun.
Here are some usefull tips on your sunglass lens choice. For specific activities different colors are recommended. Neutral Grey Lens #5 Intensity Good for everyday wear a mixture of the whole light spectrum colors are true. When you look at red through this lens it is red . When you look at green it is green. Blue is blue and so on.
Yellow lenses
Great for very low light conditions example in fog or dusk, ideal for sportsman.
Turquiose lens
Great for tennis players as it shows up only the yellow ball and blocks out all other colors.
Clear lenses with Muliti Layer Anti reflection coating and UV
Great for night skiing.
Chocolate Brown lenses
Great on the golf course brings out all the green as it is a blue blocker lens.
Pink or Rosetone Lens With Silver Mirror
Great for Day Skiing enhances the white snow yet cuts reflection
Grey lenses with Siver Mirror coating
Great for very bright white situations like up in the snowy mountains.
Polorized lenses Brown and Grey
Ideal for on the water as the polarization cuts out surface glare. Enabling you to see through the first top ten metres of the water. Great for fishing. Great for driving in rainy conditions after the sun comes out as it shines on the road, the lens cuts through the reflacted glare on the road.
However, these lenses are not recommended for flying when using visual flight rules as they also cut out visible telegraph wires and cables etc.
Drivers Lenses Orangy Brown
Great for driving and playing golf they really are a high contrast lens. You can really see the green . It picks out the details on the leaves on a tree.
Photochromatic Lenses
These lenses are great for a comfort lens. Great for outdoors and indoors. Not so great for driving though, as they do not go as dark behind a car windowscreen.
Fashion Photochromatic colors.
Changing clear to pink, clear to blue, clear to green, clear to purple, clear to orange.
These are just fun colors if you want to try something different.