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  2. Adjustable-focus eyeglasses - Wikipedia

    en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

    Adjustable-focus eyeglasses. Adjustable focus eyeglasses are eyeglasses with an adjustable focal length. They compensate for refractive errors (such as presbyopia) by providing variable focusing, allowing users to adjust them for desired distance or prescription, or both. Current bifocals and progressive lenses are static, in that the user has ...

  3. Eyeglass prescription - Wikipedia

    en.wikipedia.org/wiki/Eyeglass_prescription

    An eyeglass prescription. Similar to medical prescriptions, eyeglass prescriptions are written on paper pads or included in a patient's electronic health record, and contain a number of different abbreviations and terms: DV is an abbreviation for distance vision. This specifies the part of the prescription designed primarily to improve far vision.

  4. List of optometric abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_optometric...

    Medications Nocte/QHS At night Occ Ointment od/QD Once a day otc Over the counter (bought medication) P Pharmacy (drug) POM Prescription-only medicine prn When required q Every (e.g. q2h – every two hours) qds/qid Four times a day Rx Prescription tds/tid Three times a day ung Ointment

  5. Anthem teams up with Walmart for over-the-counter drugs - AOL

    www.aol.com/finance/2018-08-20-anthem-teams-up...

    The Walmart-Humana partnership offers a prescription drug plan that saves up to 20 percent in drug costs for customers. RELATED: 5 biggest mistakes shoppers make, according to Walmart employees

  6. All eyes are on Meta's smart glasses, but questions persist ...

    www.aol.com/finance/eyes-metas-smart-glasses...

    The glasses also feature magnesium frames to help keep the weight down. According to people familiar with the project, the wave-guides each cost around $10,000. Zuckerberg is aware of the ...

  7. Over-the-counter drug - Wikipedia

    en.wikipedia.org/wiki/Over-the-counter_drug

    Schedule 2: Does not require a prescription but requires an assessment by a pharmacist prior to sale. These drugs are kept in an area of the pharmacy where there is no public access and may also be referred to as "behind-the-counter" drugs. Schedule 3: Does not require a prescription but must be kept in an area under the supervision of a ...

  8. Vertex distance - Wikipedia

    en.wikipedia.org/wiki/Vertex_distance

    Vertex distance. Vertex distance. Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing ...

  9. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye.

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