title: Polypseudophakia for cataract surgery: 10-year follow-up on safety and stability of two poly-methyl-methacrylate (PMMA) intraocular lenses within the capsular bag.
abstract: OBJECTIVE
  To report the long-term follow-up (more than 10 years) of three patients who have undergone polypseudophakia phacoemulsification cataract surgery.
  
  
  METHODS
  A case series of three patients and four procedures. Two poly-methyl-methacrylate (PMMA) intraocular lenses (IOLs) were placed within the capsular bag (P359UV, Storz, Tuttlingen, Germany). No complications occurred peri-operatively. A full ophthalmological examination was performed at 10-year follow-up, looking for decentration, tilt, and complications of interlenticular opacification (ILO) between the IOLs.
  
  
  RESULTS
  Inferior ILO with Elschnig pearls was observed in only one case, and was likely to be visually insignificant. No ILO was observed in the other three eyes. In one patient, the piggyback IOL had been displaced 1-2 mm nasally, but there was no tilt of the IOLs, with the haptics remaining well aligned. There was no displacement or tilt of the piggyback IOL in the other three cases. Corneal endothelial cell count (SP-2000P, Topcon, Tokyo, Japan) was above 1000 cell/mm(2) in all cases.
  
  
  CONCLUSIONS
  With the introduction of foldable IOLs, the piggyback IOL is usually placed in the sulcus, but we have shown good long-term stability and minimal complications of dual PMMA IOLs placed within the bag.
authors.affiliation: Ophthalmology Department, Sussex Eye Hospital, Brighton, UK.
authors.forename: A
authors.initials: A
authors.lastname: Gomaa
authors.forename: R M H
authors.initials: RM
authors.lastname: Lee
authors.forename: C S C
authors.initials: CS
authors.lastname: Liu
mesh_terms: D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000295:instrumentation / Q000379:methods*; D007910:Lenses, Intraocular; D008875:Middle Aged; D018918:Phacoemulsification / Q000295:instrumentation* / Q000379:methods; D019904:Polymethyl Methacrylate / Q000627:therapeutic use*; D011474:Prosthesis Design; D016896:Treatment Outcome
chemical_list: D019904:Polymethyl Methacrylate