These lenses will block out all the horizontal light waves bouncing off a smooth pond/water or off a wet road surface, for instance.
As a result, the image you see with polarized lenses is a bit darker than usual, but objects look crisper and clearer, and details are easier to see. People who use polarized sunglasses for long stretches of time often say they are less tired than usual after hours of battling sun glare. People who fish, in particular, find polarized sunglasses drastically cut the glare and help them see into the water.
There are a few instances where polarized lenses are not recommended. For instance, you will have difficulty seeing images on LCD (liquid crystal display) screens such as:
- car dashboard controls
- ATM cash machines
- mobile phones and some watches
Polarised lenses will also block the sun’s harmful ultraviolet (UV) rays.
Polarised lenses are available in both prescription and non-prescription, single vision, bifocal and varifocal lens design. As standard they will have a hard coat to help with everyday scratches and are available with HMAR and flash mirror.
Prices from €109