<br />Coloured lens helps filter light to enhance your visibility from indoor low light to outdoors where bright light can be an issue. Selecting the correct shade (lens filter) will improve visibility in many applications by enhancing the contrast and protecting eyes from excessive glare.<br /><br />Conforms to EN 166:1F and EN 170 UV ray protection.<br /><br />The Scan Flexi Spectacle Clear are ideal for general use indoors, under normal lighting conditions.">