Our photochromatic reading glasses will impress you and make you very happy. Why... because there is nothing worse than being uncomfortable. Uncomfortable clothes, uncomfortable shoes, uncomfortable reading. Uncomfortable is unpleasant. Why suffer when there is a solution? Glare is annoying and can make you very uncomfortable...and unhappy. Renee’s READERS anti-glare reading glasses are clear indoors and take about 30 seconds to turn into glare reducing reading sunglasses outdoors that will continue to darken for up to 10 minutes; returning to an almost clear state within 2 minutes. Anti-glare reading sunglasses outdoors, anti-glare reading glasses indoors; made true to our top-performing quality.