We’ve all been temporarily blinded by the sun; this is caused by reflected light, known as glare. When light hits a surface, such as the road, water or snow it is reflected back and can strike your eyes making you squint.
Tinted lenses block out light but do not offer any glare reduction. Polarised lenses have a specialist filter to eliminate glare for a clear and comfortable image.
Most people think that they’re at risk only when they’re outside on a sunny day, but UV light can go right through clouds, so it doesn’t matter if the sky is overcast. The sun’s rays are strongest between 10 am and 2 pm.
Glare and reflections can give you trouble, so have your sunglasses ready if you’ll be around snow, water or sand, or if you’ll be driving (windshields are a big glare source).