Amber and rose lens tints increase visual acuity and are highly recommended for cycling. They provide the brightest field of vision and are ideal for weak to no sunlight. Thanks to their strength in colour contrast, these tints are particularly recommended when cycling on roads. By improving your reaction times, they help improve your sporting performance and your safety. When there is little or no sunlight, it is more important than ever to have tints that enable you to recognise even the smallest details quickly and clearly. When choosing a tint for cycling, make sure not to select too dark a variant because you will be switching from very sunny stretches to shaded areas very quickly – under trees or bridges and tunnels, for example. We would advise cyclists against self-tinting lenses because, despite the excellent performance characteristics of modern self-tinting lenses, they still clear too slowly for the conditions you will be using them in.
Grey lenses, although less efficient, are also recommended. They reduce glare and render colours true-to-life. They offer good vision all year round, even in bright sunshine.
As blue light is dominant in our atmosphere, our ability to see contrast is restricted. For example, the ground looks even to us, even when it isn't. Yellow lenses filter out more of the blue wavelengths of light, allowing us to see contrast better. This tint guarantees cyclists better vision with less light, in other words, in darker light conditions with less sunshine.
In average to strong sunshine, blue attenuator lenses (e.g. Skylet from Carl Zeiss Vision) are especially useful. They reduce the transmission of blue light wavelengths, thereby increasing the contrast while presenting colours in a neutral way.
Many sports lenses are also available in polarising variants. A polarising lens eliminates the vertically oscillating portion of light, which is typically formed by dazzling light sources, such as the wet surface of a road after rain.