title: Foldable lens explantation and exchange: the reason and solution.
abstract: OBJECTIVE
  To report the explanation and exchange of Hydrophilic Acrylic foldable intraocular lens (IOL) on 14 patients who had visual disturbances caused by the change of transparence on optic.
  
  
  METHODS
  Sixteen Hydrophilic Acrylic foldable intraocular lenses from 14 patients who presented with decreased visual acuity from 6 months to 1 year after normal phacoemulsification and IOL implantation associated with extensive transparent change on optic of the lens. The lenses were explanted with the bisection technique. All the eyes were reinserted with Acrysof foldable lenses.
  
  
  RESULTS
  Sixteen lenses were removed successfully and exchanged with the new lens in the capsule. The posterior capsular rupture and vitreous loss were found in the first two cases. One of them had the zonulysis due to the radial tear of the anterior capsule during the enlargement of the capsular opening. The anterior vitrectomy was performed with IOL fixed on the ciliary sulcus. The visual acuity of all the patients improved obviously without posterior complication.
  
  
  CONCLUSIONS
  Foldable lens explanation with the bisection technique and exchange had a successful outcome with improvement of ocular condition.
authors.affiliation: Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
authors.forename: D
authors.initials: D
authors.lastname: Zheng
authors.forename: Z
authors.initials: Z
authors.lastname: Zhang
authors.forename: W
authors.initials: W
authors.lastname: Yang
authors.forename: W
authors.initials: W
authors.lastname: Chen
mesh_terms: D000179:Acrylates; D000368:Aged; D000369:Aged, 80 and over; D020878:Device Removal; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011183:Postoperative Complications / Q000209:etiology* / Q000601:surgery; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*; D014821:Vitrectomy
chemical_list: D000179:Acrylates