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  2. Category:Contact lenses - Wikipedia

    en.wikipedia.org/wiki/Category:Contact_lenses

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file

  3. List of Konica Minolta A-mount lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_Konica_Minolta_A...

    While the "(D)" designation is used on the box and in the documentation, the lenses just feature a "D" instead. Requires 8 lens contacts; lenses with only 5 contacts cannot support this feature. DT "Digital Technology", lenses for cameras with APS-C (or Super-35mm) size sensors, only. DT lenses will not fully illuminate the sensor/film area of ...

  4. The best Canon telephoto lenses in 2022: for your DSLR or EOS ...

    www.aol.com/news/best-canon-telephoto-lenses...

    (Image credit: Future/Digital Camera World) 2. Canon RF 24-240mm f/4-6.3 IS USM. The best all-rounder when you just want to carry one lens. Mount: Canon RF | Autofocus: Nano Ultrasonic ...

  5. Scleral lens - Wikipedia

    en.wikipedia.org/wiki/Scleral_lens

    Scleral lens. Side view displaying vaulted area of a scleral lens. A scleral lens, also known as a scleral contact lens, is a large contact lens that rests on the sclera and creates a tear -filled vault over the cornea. Scleral lenses are designed to treat a variety of eye conditions, many of which do not respond to other forms of treatment.

  6. 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 ).

  7. Talk:Contact lens - Wikipedia

    en.wikipedia.org/wiki/Talk:Contact_lens

    Some contact lenses cover the white (or sclera) of the eye; these are referred to as scleral lenses. This text seems misplaced under Cosmetic contact lenses, sclerals being a shape of contact lens rather than a usage; but it's a bit difficult at present to see where this sentence might be better placed. BillC 01:14, 28 February 2006 (UTC) Reply

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