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  2. Astigmatism (optical systems) - Wikipedia

    en.wikipedia.org/wiki/Astigmatism_(optical_systems)

    Astigmatism causes difficulties in seeing fine detail. Astigmatism can be often corrected by glasses with a lens that has different radii of curvature in different planes (a cylindrical lens), contact lenses, or refractive surgery. [5] Astigmatism is quite common. Studies have shown that about one in three people suffers from it.

  3. Limbal relaxing incisions - Wikipedia

    en.wikipedia.org/wiki/Limbal_relaxing_incisions

    Limbal relaxing incisions (LRI) are a refractive surgical procedure to correct minor astigmatism in the eye. Incisions part way through the cornea are made at one side or at opposite edges of the cornea, following the curve of the iris, causing a slight flattening of the cornea in that area. [1]

  4. Refractive surgery - Wikipedia

    en.wikipedia.org/wiki/Refractive_surgery

    Refractive surgery is an optional eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses. This can include various methods of surgical remodeling of the cornea ( keratomileusis ), lens implantation or lens replacement.

  5. Does Medicare Cover Eyelid Surgery - AOL

    www.aol.com/lifestyle/does-medicare-cover-eyelid...

    The average cost of eyelid surgery is $3,359 for an upper blepharoplasty and $3,876 for a lower blepharoplasty without insurance. If you have Medicare Part B, you must meet a $257 deductible in ...

  6. List of instruments used in ophthalmology - Wikipedia

    en.wikipedia.org/wiki/List_of_instruments_used...

    to tear the anterior capsule of the lens during cataract surgery •Disc holding forceps: used in glaucoma surgery (obsolete) •Capsulorhexis forceps: fine sharp-tipped untoothed forceps for doing a continuous curvilinear incision and removal of the anterior capsule of the lens ("continuous curvilinear capsulorhexis - ccc") •MacPherson's forceps

  7. Chalazion - Wikipedia

    en.wikipedia.org/wiki/Chalazion

    Chalazion surgery is a simple procedure that is generally performed as a day operation, and the person does not need to remain in the hospital for further medical care. The eyelid is injected with a local anesthetic, a clamp is put on the eyelid, then the eyelid is turned over, an incision is made on the inside of the eyelid, and the chalazion ...