Polarized lenses are designed to reduce glare and improve visual clarity, especially in bright conditions. Checking if lenses are polarized is important to ensure they are providing the desired benefits and are suitable for specific activities or environments.
There are several methods to check if lenses are polarized. One common method is to use a polarized test card, which typically has a series of parallel lines or a pattern that can only be seen clearly when viewed through polarized lenses.