Commonly asked - What is the difference between polarised and non-polarised lenses?

Here we are heading in to the gloominess of winter, so it’s not surprising many of us put away our sunglasses until the longer, sunnier days arrive. What you may not realise is that it’s just as important to protect your eyes through the winter months as it is through summer.

UV Radiation:

Just like our skin, UV radiation can harm your eyes, and not just during the middle of the day in summer. Whilst UV radiation levels are three times higher during summer than in winter, UV rays are around even in overcast wintery weather. The reduction of Ozone in the Southern Hemisphere means that excessive UV rays can get through and cause long term damage to us. There is, in fact, no time of year when wearing sunglasses is not beneficial.

Non-polarised Tint vs Polarised Tint:

Non-polarised sunglasses will reduce the intensity of light reaching the eyes and protect them from NZ’S harsh UV rays. There are a range of tint colours to choose from for your prescription sunglasses, including graduated tinting to give a softer look. For those who rely heavily on digital devices or a heads-up display unit in their vehicle, UV tinted lenses would be an ideal choice. Polarised lenses on the other hand, can be a little bit of a nuisance and interfere with the appearance of digital screens. Polarised sunglasses reduce the intensity of glare while blocking certain angles of light. These will give you the same amount of protection from UV rays as non-polarised sunglasses, but with the added bonus of further glare reduction. Polarisation will allow for richer colours, starker contrast in shadows, and more clarity in your environment. It is not so much “better” for your eyes, but can be more comfortable to look through in very bright conditions.

If you’re doing an active sport that requires a quick reaction time, like mountain biking or trail running, a reflection can be a dangerous distraction. Compared to regular sunglasses, polarised lenses will erase the shimmer and keep your tyres on the dirt. Fishing and boating are also among the activities where we would suggest the use of polarised lenses. This will allow you to see through the surface of the water rather than getting a reflection back off it. Great for when you’re reeling in that big catch!! And of course, added safety when you’re out on the water. They will also help reduce eye strain and fatigue. Great for that time of the day when sun strike is a pest!

Choose the Right Sunglasses

At Blur Eyecare, all of our 3 locations carry Anne et Valentin, Serengeti, Ray Ban, Vuarnet and other leading brands. If you want to look your best, and protect your eyes in the process, come and see why the team at Blur Eyecare have been making people look amazing since 2006. Protect your eyes, and look awesome whilst you do it!