A pair of<unk> es, positioned with the concave side facing upward Putting contacts in and taking them out One-day disposable<unk> es with blue handling tint in blister-pack packaging<unk> es, or simply contacts, are thin<unk> es placed directly on the surface of the eyes.<unk> es are ocular prosthetic devices used by over 150 million people worldwide, and they can be worn to correct vision or for cosmetic or therapeutic reasons. In 2010, the worldwide market for<unk> es was estimated at $6.1 billion, while the US soft<unk>  market was estimated at $2.1 billion. Multiple analysts estimated that the global market for<unk> es would reach $11.7 billion by 2015. , the average age of<unk>  wearers globally was 31 years old, and two-thirds of wearers were female. People choose to wear<unk> es for many reasons. Aesthetics and cosmetics are the main motivating factors for people who want to avoid wearing glasses or to change the appearance or color of their eyes. Others wear<unk> es for functional or optical reasons. When compared with spectacles,<unk> es typically provide better peripheral vision, and do not collect moisture (from rain, snow, condensation, etc.) or perspiration. This can make them preferable for sports and other outdoor activities.<unk>  wearers can also wear sunglasses, goggles, or other eyewear of their choice without having to fit them with prescription<unk> es or worry about compatibility with glasses. Additionally, there are conditions such as keratoconus and aniseikonia that are typically corrected better with<unk> es than with glasses.
Contact lens
Bionic contact lens
Ocular prosthesis
Browline glasses
Tinnitus masker
Corrective lens
Electronic glasses
Trifocal lenses