title: Multi-component adjustable intraocular lenses: a new concept in pediatric cataract surgery.
abstract: OBJECTIVE
  The multi-component intraocular lens (IOL) (IVO; SAS, Strasbourg, France) is a novel approach to the treatment of pediatric cataract. Because the refractive requirements for pediatric eyes often change over time, current IOL technology does not easily allow refractive adjustments after the primary surgical intervention. The multi-component IOL concept allows easy, surgical refractive adjustments to the initial surgical implantation at any postoperative time period. Thus, both surgical implantation and enhancement surgery have been successfully accomplished in adult patients.
  
  
  METHODS
  A novel surgical approach to pediatric cataract surgery is described. At the time of the primary surgery, a two component IOL was implanted. At any postoperative time period, the front lens component, located in front of the capsular bag, could be easily surgically exchanged because the dioptric power requirements of the pediatric eye changed over time.
  
  
  RESULTS
  Both primary and enhancement surgeries have been done in adult patients with good results. Implantations have occurred uneventfully in all cases with no intraoperative or postoperative complications. There was no statistically significant difference in the endothelial cell density, anterior chamber depth, and pachymetry readings preoperatively and 2 years postoperatively. There was no interlenticular fibrosis present.
  
  
  CONCLUSIONS
  The multi-component IOL should provide a unique and greatly needed surgically adjustable approach to the treatment of pediatric cataract.
authors.forename: Dimitra M
authors.initials: DM
authors.lastname: Portaliou
authors.forename: George D
authors.initials: GD
authors.lastname: Kymionis
authors.forename: Ioannis G
authors.initials: IG
authors.lastname: Pallikaris
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D058452:Axial Length, Eye / Q000033:anatomy & histology; D001699:Biometry / Q000379:methods; D002386:Cataract / Q000151:congenital*; D002387:Cataract Extraction / Q000379:methods*; D002675:Child, Preschool; D005123:Eye / Q000254:growth & development; D006801:Humans; D007223:Infant; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007910:Lenses, Intraocular; D008875:Middle Aged; D011474:Prosthesis Design; D019591:Pseudophakia / Q000503:physiopathology; D014786:Vision Disorders / Q000534:rehabilitation*; D014792:Visual Acuity / Q000502:physiology