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Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, [1] and they can be worn to correct vision or for cosmetic or therapeutic reasons. [2]
Contact lenses are clear, round lenses placed on the surface of the eye to improve vision. Types of contact lenses can be classified by function, material, and design. By function, corrective contact lenses are used to correct refractive error, including myopia, hyperopia, astigmatism, and presbyopia.
Contact lenses are an excellent choice for nearly anyone who needs vision correction and doesn't want to wear eyeglasses full time or undergo LASIK surgery. Unsure about contact lenses? This article will detail contact lens materials, contact lens designs and features and even new contact lens formats.
A contact lens is a type of lens that are put directly onto the eye in order to help people see better. They are a different option instead of glasses. They have to be prescribed by an eye doctor. Some contact lenses can be used many times, while other types are disposable products used only once and then thrown away.
Soft contact lenses are one of several types of contact lenses for corrective vision eyewear as prescribed by optometrists and ophthalmologists. [1]
Contact lenses are thin lenses that sit on top of the cornea (the clear outer layer of the eye). They make your vision clearer — just like eyeglasses. Read about the different types of contact lenses, their benefits and risks, how to take care of them, and how to get them.
Leonardo da Vinci is often credited with the first conception of the idea of contact lenses in 1508, in Codex Of The Eye, Manual D. Discover the exact history of contact lenses.
Though contact lenses seem to be a recent phenomenon, the famous Italian architect, mathematician and inventor Leonardo da Vinci (1452-1519) produced the first known sketches (in 1508) that suggested the optics of the human eye could be altered by placing the cornea directly in contact with water.
contact lens, thin artificial lens worn on the surface of the eye to correct refractive defects of vision. The first contact lens, made of glass, was developed by Adolf Fick in 1887 to correct irregular astigmatism. The early lenses, however, were uncomfortable and could not be worn for long.
Anne Marie Helmenstine, Ph.D. Updated on October 06, 2019. Millions of people wear contact lenses to correct their vision, enhance their appearance, and protect injured eyes. The success of contacts is related to their relatively low cost, comfort, effectiveness, and safety.