Glasses with NEUTRAL photochromic lenses, very useful for wearers who prefer to avoid the use of two pairs of glasses, to Sunglasses and from EYEGLASSES. In fact, these lenses, exposed to UV radiation or sunlight in general, start a reversible chemical reaction and darken. Once the irradiation of light or UV rays disappears they gradually return to their initial state of transparency. Dark on the outside, it returns to light indoors. It adapts perfectly to any lighting situation.
