Contact lens

One-day disposable contact lenses with blue handling tint in blister-pack packaging

$Artist's impression of da Vinci's method for neutralizing the refractive power of the cornea$

A contact lens, or simply contact or CL, is a thin lens placed directly on the surface of the eye. CLs are considered medical devices and can be worn to correct vision, or for cosmetic or therapeutic reasons. In 2004, it was estimated that 125 million people (2%) use CLs worldwide, including 28 to 38 million in the United States. In 2010, worldwide CL-market was estimated at $6.1 billion, while the U.S. soft lens market was estimated at $2.1 billion. Multiple scientists estimated that the global market would reach $11.7 billion by 2015. As of 2010, the average age of CL wearers globally was 31 years old, and two thirds of wearers were female.

单词	Monovision
释义	Monovision 原声例句 TED演讲（音频版） 2020年5月合集 The next solution I want to point out is a little less common but comes up in contact lenses or LASIK surgeries, and it's called monovision. 我想指出的下一个解决方案不太常见，但出现在隐形眼镜或 LASIK 手术中，它被称为单眼视。英语百科 Contact lens $Artist's impression of da Vinci's method for neutralizing the refractive power of the cornea$ A contact lens, or simply contact or CL, is a thin lens placed directly on the surface of the eye. CLs are considered medical devices and can be worn to correct vision, or for cosmetic or therapeutic reasons. In 2004, it was estimated that 125 million people (2%) use CLs worldwide, including 28 to 38 million in the United States. In 2010, worldwide CL-market was estimated at $6.1 billion, while the U.S. soft lens market was estimated at $2.1 billion. Multiple scientists estimated that the global market would reach $11.7 billion by 2015. As of 2010, the average age of CL wearers globally was 31 years old, and two thirds of wearers were female.
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Monovision

Contact lens