Cataracts cannot be removed with a laser, only through a surgical incision or a cataract surgery. There are laser devices for cataract removal under investigation, but none are approved by the Food and Drug Administration.
In cataract surgery, the cloudy lens is removed from the eye. In most cases, the focusing power of the natural lens is restored by replacing it with a permanent intraocular lens implant.
Nearly all cataracts today are removed by extra-capsular cataract surgery, in which the posterior capsule of the natural lens is left in place to support the plastic replacement lens which is implanted at the time of the cataract surgery.
Both "one-stitch" and "no-stitch" surgery are just variants of phacoemulsification. The incision used in the surgery may be placed in one of several locations and the architecture of the incision may vary as well. The same incision may be "no-stitch" if the incision is watertight following cataract surgery, or "one-stitch" if it is not, and requires a stitch to make it so.
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