Finding good polarized fishing sunglasses is not as simple as reading advertisements and looking for bargains. The technology behind these specialized lenses is fairly involved, being based on light and how it works. Understanding the subject involves basic physics and misleading marketing. For instance, taking on faith the claim that lenses work on both water and snow glare may lead you into error.
Selecting the right light-blocking lenses for your purpose is important, both for the health of your eyes and for clear vision. Sometimes the polarizing variety are helpful, but sometimes they can block vision and become a safety hazard. You'll see advertisements that offer the same glasses for fishing, skiing, cycling, and driving a car. 'Buyer beware'; there are points to consider.
There are some sites online that detail the way polarizing lenses work, as well as why they help minimize certain types of glare and when they are helpful. Apparently light is usually 'scattered', so it comes at your eyes from many directions at once. However, when it is reflected, it travels in a much more direct and intense path to your eyes. This intensity is called glare, and it can be both uncomfortable and harmful.
The angle of the light affects how it can be filtered by polarizing glasses. They work best at mid-morning and mid-afternoon, apparently. High noon light renders than less effective at seeing underwater. It's also better to look into the water at an angle rather than straight down. Cocking your head can interfere with vision, as well, experts say.
Water reflects sunlight differently from snow, which another aspect explained by physics. Ads might claim that lenses work for many activities, but this is disputed. For instance, skiers might find them helpful for long-distance vision and for general glare protection. However, they may miss seeing details like icy patches that can take them unawares. Reading digital instruments is impossible, as well.
Actually, the topic of reflected light would make a great science fair project. For those who just want to wear glasses that help them see when on the water, all this information might not be necessary. The fact is that these lenses can both help cut glare off the water and make objects underwater - like fish - more visible. They block out reflections of clouds as well as light, apparently.
In that case, you need to find a reputable manufacturer or depend on the advice of experienced fishermen. Magazines and online sites devoted to the sport may help. Your eye doctor might be able to give you sound counsel; perhaps he or she even fishes for fun. A good retailer will have customer reps who can answer questions when it's time to make a purchase.
However, if you really want to know, the internet has some fascinating articles. There's even a way to make sure that the lenses you have are really polarized - it involves looking at reflections in a certain way and then cocking your head and seeing if the image changes. Check it out; after all, knowledge is power, right?
Selecting the right light-blocking lenses for your purpose is important, both for the health of your eyes and for clear vision. Sometimes the polarizing variety are helpful, but sometimes they can block vision and become a safety hazard. You'll see advertisements that offer the same glasses for fishing, skiing, cycling, and driving a car. 'Buyer beware'; there are points to consider.
There are some sites online that detail the way polarizing lenses work, as well as why they help minimize certain types of glare and when they are helpful. Apparently light is usually 'scattered', so it comes at your eyes from many directions at once. However, when it is reflected, it travels in a much more direct and intense path to your eyes. This intensity is called glare, and it can be both uncomfortable and harmful.
The angle of the light affects how it can be filtered by polarizing glasses. They work best at mid-morning and mid-afternoon, apparently. High noon light renders than less effective at seeing underwater. It's also better to look into the water at an angle rather than straight down. Cocking your head can interfere with vision, as well, experts say.
Water reflects sunlight differently from snow, which another aspect explained by physics. Ads might claim that lenses work for many activities, but this is disputed. For instance, skiers might find them helpful for long-distance vision and for general glare protection. However, they may miss seeing details like icy patches that can take them unawares. Reading digital instruments is impossible, as well.
Actually, the topic of reflected light would make a great science fair project. For those who just want to wear glasses that help them see when on the water, all this information might not be necessary. The fact is that these lenses can both help cut glare off the water and make objects underwater - like fish - more visible. They block out reflections of clouds as well as light, apparently.
In that case, you need to find a reputable manufacturer or depend on the advice of experienced fishermen. Magazines and online sites devoted to the sport may help. Your eye doctor might be able to give you sound counsel; perhaps he or she even fishes for fun. A good retailer will have customer reps who can answer questions when it's time to make a purchase.
However, if you really want to know, the internet has some fascinating articles. There's even a way to make sure that the lenses you have are really polarized - it involves looking at reflections in a certain way and then cocking your head and seeing if the image changes. Check it out; after all, knowledge is power, right?
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