title: Intraocular lens explantation or exchange: indications, postoperative interventions, and outcomes.
abstract: OBJECTIVE
  To analyze the indications for explantation or exchange of intraocular lenses (IOLs), which were originally implanted for the correction of aphakia during cataract extraction.
  
  
  METHODS
  All cases that involved intraocular lens explantation or exchange in one institution between January 2008 and December 2014 were analyzed retrospectively.
  
  
  RESULTS
  In total, 93 eyes of 93 patients were analyzed. The median time interval between implantation and explantation of the anterior chamber intraocular lenses (AC IOL) and posterior chamber intraocular lenses (PC IOL) was 83.40 ± 83.14 months (range: 1-276 months) and 55.14 ± 39.25 months (range: 1-168 months), respectively. Pseudophakic bullous keratopathy (17 eyes, 38.6%) and persistent iritis (12 eyes, 27.8%) in the AC IOL group and dislocation or decentration (30 eyes, 61.2%) and incorrect IOL power (nine eyes, 18.4%) in the PC IOL group were the most common indications for explantation of IOLs. The mean logMAR best corrected visual acuity (BCVA) improved significantly from 1.30 preoperatively to 0.62 postoperatively in the PC IOL group (p<0.001) but did not improve significantly in the AC IOL group (p=0.186).
  
  
  CONCLUSIONS
  The primary indication for IOL explantation or exchange was pseudophakic bullous keratopathy in the AC IOL group and was dislocation or decentration in the PC IOL group. PC IOL explantation or exchange is safe and improves visual acuity.
authors.affiliation: Department of Ophthalmology, School of Medicine, Necmettin Erbakan University, Konya, Turkey.
authors.forename: Refik
authors.initials: R
authors.lastname: Oltulu
authors.affiliation: Department of Ophthalmology, School of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey.
authors.forename: İsmail
authors.initials: İ
authors.lastname: Erşan
authors.affiliation: Department of Ophthalmology, School of Medicine, Necmettin Erbakan University, Konya, Turkey.
authors.forename: Günhal
authors.initials: G
authors.lastname: Şatırtav
authors.affiliation: Department of Ophthalmology, Mus State Hospital, Mus, Turkey.
authors.forename: Meryem
authors.initials: M
authors.lastname: Donbaloglu
authors.affiliation: Department of Ophthalmology, School of Medicine, Necmettin Erbakan University, Konya, Turkey.
authors.forename: Hürkan
authors.initials: H
authors.lastname: Kerimoğlu
authors.affiliation: Department of Ophthalmology, School of Medicine, Necmettin Erbakan University, Konya, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Özkağnıcı
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D003316:Corneal Diseases / Q000150:complications / Q000601:surgery*; D020878:Device Removal / Q000379:methods*; D005260:Female; D006801:Humans; D007429:Intraocular Pressure; D007431:Intraoperative Complications; D007500:Iritis / Q000150:complications / Q000601:surgery; D019654:Lens Implantation, Intraocular / Q000009:adverse effects / Q000379:methods*; D007906:Lens Subluxation / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012030:Refractive Errors / Q000150:complications*; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity; D055815:Young Adult