Transparent specs often associated with hygienist appointments have conquered catwalks and high streets Transparent specs often associated with hygienist appointments have conquered catwalks and high streets Despite some people in the UK experiencing 40 consecutive days of rain this year, sales of sunglasses have not been dampened. Instead, the dark skies have ushered in a new era of eyewear: the non-sun sunglasses. The style comprises shield-style frames with barely-there tinted lenses. They