In fact, they have become another fashion accessory for many. On a purely cosmetic basis, wearing them can totally change an individual's basic appearance. For those with dark brown or black eye color, there is now an extensive array of lenses that cover the original colored iris with a completely different hue. Many of these colors are amazingly realistic, and can match nearly any shade.
The most popular colored lenses come in variations of blue and green. They can cover any original eye color, and especially enhance those eyes that are already a shade of blue or gray. Some industry analysts estimate that up to half of the people wearing these kinds of lenses do not actually need their vision corrected, but simply like the ability to change colors to fit the occasion.