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  2. Alcaftadine - Wikipedia

    en.wikipedia.org/wiki/Alcaftadine

    Alcaftadine, sold under the brand name Lastacaft, is an antihistamine used to help prevent itching of the eyes. [1] It is an H1 histamine receptor antagonist. [1] It is given as an drops in the eye. [1] It was approved for medical use in the United States in July 2010. [3] It is available as a generic medication and as an over-the-counter ...

  3. Ketotifen - Wikipedia

    en.wikipedia.org/wiki/Ketotifen

    Ketotifen is an antihistamine medication and a mast cell stabilizer used to treat allergic conditions such as conjunctivitis, asthma, and urticaria (hives).Ketotifen is available in ophthalmic (eye drops or drug-eluting contact lenses) and oral (tablets or syrup) forms: the ophthalmic form relieves eye itchiness and irritation associated with seasonal allergies, while the oral form helps ...

  4. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    Rigid contact lenses can best be removed by pulling the eyelid tight and then blinking, whereupon the lens drops out. With one finger on the outer corner of the eyelids, or lateral canthus , the person stretches the eyelids towards the ear; the increased tension of the eyelid margins against the edge of lens allows the blink to break the ...

  5. Dry eye syndrome - Wikipedia

    en.wikipedia.org/wiki/Dry_eye_syndrome

    Dry eye may also be caused by thermal or chemical burns, or (in epidemic cases) by adenoviruses. A number of studies have found that people with diabetes have an increased risk for the condition. [26] About half of all people who wear contact lenses complain of dry eyes. [4] There are two potential connections between contact usage and dry eye.

  6. Eyeglass prescription - Wikipedia

    en.wikipedia.org/wiki/Eyeglass_prescription

    An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient. If an eye examination indicates that corrective lenses are appropriate, the prescriber generally ...

  7. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    Use contact lenses in place of or as well as eyeglasses. A contact lens rests directly on the surface of the cornea and moves in sync with all eye movements; consequently, a contact lens is always almost perfectly aligned on center with the pupil, and there is never any significant off-axis misalignment between the pupil and the optical center ...

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