I am very used in wearing colorful lenses, because i have worn many colors,types and sizes,since i were 18! My review about these grey lenses is that they enlarge the eyes making them bigger and they give a nice natural result with half grey and half blue tones, if you are having natural dark green eyes! Also they are eye friendly in general,but i suggest NOT wearing them many hours on work or on reading,because they tend to be a burden on my eyes. Otherwise, they are perfect for a natural and not extreme look!