Phakic intraocular lens
Lens implanted in eye in addition to the natural lens / From Wikipedia, the free encyclopedia
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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.
Phakic intraocular lenses are indicated for patients with high refractive errors when the usual laser options for surgical correction (LASIK and PRK) are contraindicated.[1][2] Phakic IOLs are designed to correct high myopia ranging from −5 to −20 D if the patient has enough anterior chamber depth (ACD) of at least 3 mm.[3]
Three types of phakic IOLs are available:
- Angle-supported
- Iris-fixated
- Sulcus-supported intraocular lens