When biking, for example, the wearer passes through sunlight and shadows very quickly. In this case, a dark tint is not advantageous because the eye cannot adapt quickly enough when the amount of light changes.
We would also advise cyclists against wearing self-tinting lenses, because the lenses do not clear quickly enough to meet these more demanding requirements.
Our recommendation would be lower-performing grey lenses that reduce glare and preserve truer colours. These lenses offer good vision all-year-round, even in bright daylight. Yellow lenses, however, filter out a larger portion of blue light, providing better contrast and enabling the wearer to distinguish uneven surfaces.
Here's our tip: take some time to talk your optician and try out a few different versions! When you make your decision, select the brightest tint which you find comfortable – you shouldn't have to squint when wearing these glasses in incident light. And no matter what colour tint you choose, make sure your lenses have a hard coating to protect them against scratches and an anti-reflective coating to prevent irritating reflections in the lens.