The choice of fishing sunglasses is very learned, because improper choice is easy to cause damage to the eyes. Fishing sunglasses can also be used as daily sunglasses. You should pay attention to the following points when choosing your own fishing sunglasses.
First, you should make sure to buy sunglasses with UV protection. Check the outer packaging of the sunglasses. The sunglasses are usually marked with the name, colour, diameter, quality level, manufacturer's name and trademark, and with the UVA, UVB and CE mark on the lens or hangtag.
The sunglasses are generally 100% UV protection, that is, UV400 blocking. Roadside stalls, small sales of glasses, often fail to meet the standard of UV protection, it is best not to buy.
Secondly, when choosing, pay attention to the surface of the lenses to be smooth, no ripples, no defects, no bubbles, no abrasion marks. To put the lenses flat, observe them horizontally for warping. Lenses with unevenness or marks or bubbles should not be purchased.
Thirdly, the choice of colour of the lenses should be based on the principle that the colours around them are not distorted after wearing them, that the edges of the objects are clear and that the different colour signals can be effectively identified. The choice of lens colour shades should depend on the place of activity, generally with a medium depth, such as light grey, light teal, light green, etc. These colours are better for the absorption of infrared and ultraviolet rays by sunglasses. Of course, if the requirement for shading is strong, darker lenses should be chosen. But cyclists or motorists should not use dark colour lens, otherwise they cannot effectively identify different coloured traffic lights.
Fourth, after buying fishing sunglasses, you should try out whether there is a feeling of glare, headache. Now there are also some marked degrees of myopic sunglasses on sale, but the pupil distance and other indicators vary from person to person, so without the guidance of professionals, consumers better not choose such sunglasses with degrees.
Fifth, fishing sunglasses made with polarised lenses are more perfect protection for us, especially when engaged in water activities or fishing. Under normal circumstances, when light hits the surface of an object, it will be refracted to varying degrees, and this process of refraction is called polarization. When people are exercising outdoors and sunlight hits the surface of a lens, a "flattening" phenomenon occurs on the mirror surface. In short, this means that all light waves are transmitted in one direction.
When the wind blows, the swaying waves of water constantly reflect the glare, which is particularly more damaging to the eyes than normal. This can be avoided with polarised lenses, which are special filter films sandwiched in the lens that filter out the harsh glare reflections. At the same time, polarised lenses have good image representation. This is most noticeable when fishing in shallow water. Fish swimming in the water can be observed through the lenses and their movements can be clearly identified without confusion due to the similarity of colours.
Sixthly, for the choice of fishing sunglasses, two colours of lenses are recommended. One is the amber lens. These lenses are suitable for use in the autumn and winter months. Sometimes these lenses can be used when fishing near the beach or in low light conditions. Byrd explains: "When the weather is not very good, such as when it is cloudy, rainy, foggy or snowy, the light is mainly harsh on the eyes. The amber lenses effectively eliminate this glare compared to other colours. This is like an equaliser on a stereo, amber lenses eliminate glare and make the observed objects stand out more". Another type of lens is the brown lens, which is suitable for wearing in the hot sun. In hot sunlight, brown lenses block out the red light from the light.
