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  2. List of soft contact lens materials - Wikipedia

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

    In the US market, soft contact lenses are approved by the US Food and Drug Administration. The American Optometric Association published a contact lens comparison chart called Advantages and Disadvantages of Various Types of Contact Lenses on the differences between them. These include: soft contact lenses; rigid gas-permeable (RGP) daily wear

  3. 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 ...

  4. Base curve radius - Wikipedia

    en.wikipedia.org/wiki/Base_curve_radius

    Base curve radius, or simply base curve, abbreviated BCR or BC, is the measure of an important parameter of a lens in optometry. On a spectacle lens, it is the flatter curvature of the front surface. On a contact lens it is the curvature of the back surface and is sometimes referred to as the back central optic radius (abbreviated BCOR ).

  5. Multifocal diffractive lens - Wikipedia

    en.wikipedia.org/wiki/Multifocal_diffractive_lens

    A multifocal diffractive lens is a diffractive optical element (DOE) that allows a single incident beam to be focused simultaneously at several positions along the propagation axis. Example of multifocal peak intensity distribution along optical axis.(Courtesy of Holo/Or) Intensity distribution of multifocal lens 5 foci in Z-X plane

  6. Multifocal lens - Wikipedia

    en.wikipedia.org/wiki/Multifocal_lens

    Multifocal lens may refer to: Progressive lens, used in eyeglasses. Multifocal intraocular lens. Multifocal diffractive lens, a diffractive optical element used with lasers. Categories: Disambiguation pages. Lenses.

  7. Bionic contact lens - Wikipedia

    en.wikipedia.org/wiki/Bionic_contact_lens

    Bionic contact lens. A bionic contact lens is a proposed device that could provide a virtual display that could have a variety of uses from assisting the visually impaired to video gaming, as claimed by the manufacturers and developers. [1] The device will have the form of a conventional contact lens with added bionics technology in the form of ...

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