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A phakic intraocular lens (PIOL) is an intraocular lens that is implanted surgically into the eye to correct refractive errors without removing the natural lens (also known as "phakos", hence the term). Intraocular lenses that are implanted into eyes after the eye's natural lens has been removed during cataract surgery are known as pseudophakic.
A phakic IOL. An intraocular lens (IOL) is a lens implanted in the eye usually as part of a treatment for cataracts or for correcting other vision problems such as near-sightedness (myopia) and far-sightedness (hyperopia); a form of refractive surgery.
Phakic intraocular lens implantation inside the eye can also be used to change refractive errors. The newest type of intervention is a type of PIOL called the implantable collamer lens ( ICL ) which uses a biocompatible flexible lens which can be inserted in the eye via a 3 mm incision.
Angle-supported intraocular lenses are a special kind of intraocular lens that can be implanted surgically into the anterior chamber of the eye. These lenses are called angle-supported because the footplates of the lens rest in the irido-corneal angle .
In the 1970s he developed the surgical technique he is most famous for, the radial keratotomy, to change the shape of the cornea and cure myopia. [2] In 1986, Fyodorov designed the first posterior chamber phakic IOL in the "collar-button" or "mushroom" configuration and manufactured the pIOL from silicone.
When the posterior capsule is damaged, the IOL may be inserted into the ciliary sulcus, [18] or a glued intraocular lens technique may be applied. [19] It is economical to use a rigid IOL if the incision size is already over 6 mm wide, but foldable IOLs can also be used if cost is not a limiting factor or incision size is <5 mm. [ 4 ]
PRK is a laser treatment of the corneal surface for the correction of refractive errors. Similarly, Gimbel was the first surgeon in North America to offer the Implantable Collamer Lens (ICL) to his patients in 1997. The ICL is a posterior chamber, phakic intraocular lens used for the correction of moderate to high refractive errors.
The AMO portfolio already included the Amadeus II microkeratome, the Verisyse phakic IOL, and the ReZoom, Array and Tecnis IOLs. In Jan. 16, 2007 AMO announced the acquisition of privately held WaveFront Sciences Inc., a provider of wavefront diagnostic systems for refractive surgery and medical research, for $20 million in cash.