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  2. Toric lens - Wikipedia

    en.wikipedia.org/wiki/Toric_lens

    Toric lens surface as "cap" (top-right) from a torus (here with R = 1.2 r ). A toric lens is a lens with different optical power and focal length in two orientations perpendicular to each other. One of the lens surfaces is shaped like a "cap" from a torus (see figure at right), and the other one is usually spherical.

  3. List of soft contact lens materials - Wikipedia

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

    Types. The FDA classifies soft contact lenses into four groups for the US market. They are also subcategorized into 1st generation, 2nd generation, and 3rd generation lens materials. [6] These 'water-loving' soft contact lens materials are categorized as "Conventional Hydrophilic Material Groups ("-filcon"): Group. Water Content.

  4. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    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 ...

  5. Apple, Microsoft, or Nvidia: Which Will Be the World's Most ...

    www.aol.com/apple-microsoft-nvidia-worlds-most...

    As of Thursday, the Windows maker was back in first place again, but with all three companies holding market caps of around $3.2 trillion, in the near term, their rankings within the top three ...

  6. Intraocular lens - Wikipedia

    en.wikipedia.org/wiki/Intraocular_lens

    Intraocular lens. An Intraocular lens ( IOL) is a lens implanted in the eye usually as part of a treatment for cataracts or for correcting other vision problems such as short sightedness and long sightedness; a form of refractive surgery. If the natural lens is left in the eye, the IOL is known as phakic, otherwise it is a pseudophakic lens (or ...

  7. Toric code - Wikipedia

    en.wikipedia.org/wiki/Toric_code

    The toric code can also be considered to be a Z 2 lattice gauge theory in a particular limit. It was introduced by Alexei Kitaev. The toric code gets its name from its periodic boundary conditions, giving it the shape of a torus. These conditions give the model translational invariance, which is useful for analytic study.

  8. This Giant Cookie Cake Is Better Than ANY Birthday Cake - AOL

    www.aol.com/giant-cookie-cake-better-birthday...

    Preheat oven to 350° and line a 9" round cake pan with parchment paper. Grease with cooking spray. In a large bowl using a hand mixer, beat butter and sugars until light and fluffy. Add the egg ...

  9. Microsoft Defender Antivirus - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Defender_Antivirus

    Microsoft Defender Antivirus (formerly Windows Defender) is an antivirus software component of Microsoft Windows. It was first released as a downloadable free anti-spyware program for Windows XP and was shipped with Windows Vista and Windows 7. It has evolved into a full antivirus program, replacing Microsoft Security Essentials in Windows 8 or ...

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