PhotoGrey & Brown
Photochromatic lenses are spectacle lenses that darken automatically when exposed to sunlight and they return to normal once back indoors. An added benet is that photochromatic lenses shield eyes from UVA and UVB rays.
Almost all types of lens materials and designs, including high index lenses, bifocal lenses and progressive lenses can be added with photochromatic variant. It’s denitely a good idea to consider Photochromatic lenses even for children as they tend to be outdoors (and thus need good UV protection) and the eyes continue to develop upto the age of 12. Damage from the sun accumulates over time, so protecting the eyes should begin as early as possible. Because of this, lenses that lter glare are essential. PG lenses are ideal because they not only absorb UV light, but they change as the intensity of light changes.