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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. [2] 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. [3] These include: soft contact lenses; rigid gas-permeable (RGP ...

  3. Eyewear - Wikipedia

    en.wikipedia.org/wiki/Eyewear

    Upon the release of the printing press and the mass adoption of literature, larger sectors of the population began to buy into eyewear to assist with reading. Eyewear frames around this time were mainly made of animal bones, horns and fabric; the implementation of wire frames in the 16th century further allowed glasses to be mass-produced.

  4. Sony α - Wikipedia

    en.wikipedia.org/wiki/Sony_α

    As a result, all Minolta A-mount lenses can be used on Sony DSLRs (except for that some newer camera features cannot be used), and all Sony A-mount lenses work on Minolta's film and digital SLRs (except for that SSM/SAM lenses can be used only with manual focusing on cameras not supporting SSM and that APS-C format lenses cannot reasonably be ...

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

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

    The effects of extended contact lens wear on the cornea have been studied extensively and are well-documented. When determining the effects of long-term contact lens use on the cornea, many studies do not differentiate between users of hard and soft contact lenses, while studies that have made this differentiation have found similar results.

  6. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    Multifocal contact lenses (e.g. bifocals or progressives) are comparable to spectacles with bifocals or progressive lenses because they have multiple focal points. Multifocal contact lenses are typically designed for constant viewing through the center of the lens, but some designs do incorporate a shift in lens position to view through the ...

  7. Target Optical - Wikipedia

    en.wikipedia.org/wiki/Target_Optical

    Sunglasses, contact lenses, prescription glasses: Services: Opticians, optical retail, sun retail, contact lenses: Parent: Cole National Corporation (1995-2004) Luxottica (2004-2018) EssilorLuxottica (2018–present) Website: targetoptical.com

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