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  2. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used ...

  3. Orthokeratology - Wikipedia

    en.wikipedia.org/wiki/Orthokeratology

    Orthokeratology lens. Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVSS), is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia ...

  4. Optical lens design - Wikipedia

    en.wikipedia.org/wiki/Optical_lens_design

    Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations. Parameters include surface profile types (spherical, aspheric, holographic, diffractive, etc.), as well as radius of curvature, distance to the next surface, material type and optionally tilt and decenter.

  5. Optics Software for Layout and Optimization - Wikipedia

    en.wikipedia.org/wiki/Optics_Software_for_Layout...

    Optics Software for Layout and Optimization. Optics Software for Layout and Optimization ( OSLO) is an optical design program originally developed at the University of Rochester in the 1970s. The first commercial version was produced in 1976 by Sinclair Optics. Since then, OSLO has been rewritten several times as computer technology has advanced.

  6. US cities with the most homes under $200,000 - AOL

    www.aol.com/finance/us-cities-most-homes-under...

    The cost of buying a home in the U.S. is at a record high, but a new study shows where you can find the most homes for sale at less than $200,000, which is roughly half the median. US cities with ...

  7. Near-sightedness - Wikipedia

    en.wikipedia.org/wiki/Short_sight

    1.5 billion people (22%) [2] [4] Near-sightedness, also known as myopia and short-sightedness, is an eye disease [5] [6] [7] where light from distant objects focuses in front of, instead of on, the retina. [1] [2] [6] As a result, distant objects appear blurry while close objects appear normal. [1] Other symptoms may include headaches and eye ...

  8. Zemax - Wikipedia

    en.wikipedia.org/wiki/Zemax

    Zemax OpticStudio, also known simply as Zemax, is a software program used for designing and simulating optical systems. It runs under Microsoft Windows. [1] [2] [3] It can be used in the fields of optics and photonics to design and analyze lenses, cameras, telescopes, microscopes, and other optical systems.

  9. 15 wedding guest dresses from Walmart under $40 (that don't ...

    www.aol.com/lifestyle/wedding-guest-dresses...

    Quick Overview. Sofia Jeans Convertible Neck Maxi Dress. $26 at Walmart. Sofia Jeans Off The Shoulder Dress. $26 at Walmart. Time and Tru Tie Shoulder Mini Dress. $17 at Walmart. Jessica Simpson ...

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