Are your Y2K sunglasses causing sun damage?

Wearing larger frames with the right lenses is what we should aim for most of the time – not just for bright direct sun exposure. “Up to 80 per cent of UV radiation penetrates cloud cover and UV exposure occurs year-round, even on cold or overcast days,” Dr Zamani says.

Sunlight carries three types of ultraviolet radiation – UVA, UVB and UVC – though only the first two reach ground level and UVB is generally considered the more damaging of the pair. Both are present whether or not the…