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  2. List of soft contact lens materials - Wikipedia

    en.wikipedia.org/wiki/List_of_soft_contact_lens...

    The first contact lenses were made of glass, in 1888. Initially the glass was blown but soon lenses were made by being ground to shape. For the first fifty years, glass was the only material used. The lenses were thin, yet reports of injury were rare. In 1938 perspex (polymethylmethacrylate, or PMMA) began to replace glass in contact lens ...

  3. Mayo Clinic - Wikipedia

    en.wikipedia.org/wiki/Mayo_Clinic

    Website. mayoclinic.org. Mayo Clinic (/ ˈmeɪjoʊ /) is a private American academic medical center focused on integrated healthcare, education, and research. [4] It maintains three major campuses in Rochester, Minnesota; Jacksonville, Florida; and Phoenix / Scottsdale, Arizona. Mayo Clinic employs over 7,300 physicians and scientists, along ...

  4. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used ...

  5. Mayo Clinic Hospital (Rochester) - Wikipedia

    en.wikipedia.org/wiki/Mayo_Clinic_Hospital...

    Mayo Clinic, Rochester, was ranked in the top 10 in all but one of 16 specialties, in the top 4 in 13 specialties, and was the #1 ranked hospital in 8 of the 12 data-driven specialties. This year U.S. News expanded their common procedures and conditions list to 9 individual measures, and Mayo was one of fewer than 70 hospitals to score High ...

  6. Effects of long-term contact lens wear on the cornea - Wikipedia

    en.wikipedia.org/wiki/Effects_of_long-term...

    Long-term contact lens use can lead to alterations in corneal thickness, stromal thickness, curvature, corneal sensitivity, cell density, and epithelial oxygen uptake, etc. Other changes may include the formation of epithelial vacuoles and microcysts (containing cellular debris) as well as the emergence of polymegethism in the corneal endothelium.

  7. Orthokeratology - Wikipedia

    en.wikipedia.org/wiki/Orthokeratology

    Orthokeratology lens. Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVSS), is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia ...

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