Good visibility is essential when driving but all too often your vision can be impaired by dazzle and glare from the sun and headlights these two pairs of special driving glasses are designed to weaken light reflexes whilst enhancing contrast theyll improve comfort when driving at day or night absorbing ultraviolet light the grey lenses make daytime driving safer in low evening sun conditions while the yellow lenses make nightime driving safer by reducing headlight glare and wet road refl