Implantation of Phakic Anterior Chamber Lens for the Treatment of Extreme Myopia

Abstract

The purpose of this study was to examine visual function and eye structure before and after implantation of an intraocular lens in the phakic posterior chamber of the eye, for the correction of extreme myopia. Thirty subjects with 12∼ –27 diopters of extreme myopia were implanted with posterior chamber phakic intraocular lenses, and followed-up for 3–27 months. The follow-up examinations included uncorrected visual acuity (UCVA), best corrected visual acuity (BSCVA), intra ocular pressure (IOP), refractive power, lens transparency, intra ocular lens (IOL) position, endothelial cell density (ECD), anterior chamber depth (ACD), axial length, near point of accommodation, and macular retinal thickness. All indices improved after the surgery. These results demonstrate that the implantable collamer lens (ICL) for extreme myopia can effectively improve vision, and does not have negative effects on eye structure and accommodation.