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  2. VSP Vision Care - Wikipedia

    en.wikipedia.org/wiki/VSP_Vision_Care

    VSP Vision Care (VSP) is a vision care health insurance company operating in Australia, Canada, Ireland, the United States, and the United Kingdom.It is a doctor-governed company divided into five businesses: “eye care insurance, eyewear, lens and lens enhancements, ophthalmic technology, and connected experiences to strengthen the relationship between patients and their eye doctors.” [1 ...

  3. Seniors will pay more for Medicare in 2025. Here's what to know.

    www.aol.com/seniors-pay-more-medicare-2025...

    The standard monthly premium ... Beneficiaries with incomes above $106,000 but below $394,000 are looking at paying IRMAA of $406.90 plus the standard $185.00, or $591.90 a month. Seniors with ...

  4. Adjustable-focus eyeglasses - Wikipedia

    en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

    Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi-focal lenses. Additionally, the ideal near-vision correction can be achieved with precision, because the variable lenses emulate the focusing action of the youthful (non-presbyopic) eye.

  5. Eyeglass prescription - Wikipedia

    en.wikipedia.org/wiki/Eyeglass_prescription

    This specifies the part of the prescription designed primarily to improve far vision. In a bifocal lens, this generally indicates what is to be placed in the top segment. NV is an abbreviation for near vision. This may represent a single-vision lens prescription to improve near work, or the reading portion of a bifocal lens.

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

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

    The oxygen transmissibility of contact lenses is measured in units of Dk/t, which is the oxygen permeability of the lens material (Dk) divided by the thickness of the lens (t). The industry standard is to report Dk/t values measuring lens thickness at the center of a -3.00 D lens.

  7. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    A lens which includes some amount of prism correction will displace the viewed image horizontally, vertically, or a combination of both directions. The most common application for this is the treatment of strabismus. By moving the image in front of the deviated eye, double vision can be avoided and comfortable binocular vision can be achieved ...