title: A prospective, randomised comparison of single and three piece acrylic foldable intraocular lenses.
abstract: OBJECTIVE
  To compare the postoperative performance of single and three piece acrylic foldable intraocular lenses (IOLs).
  
  
  METHODS
  20 patients underwent bilateral cataract surgery with a single piece SA30AL IOL in one eye and a three piece MA30BA IOL in the other eye. The eyes were randomly assigned to either a single or three piece lens. The amount of IOL decentration and tilt, area of anterior capsule opening, and degree of posterior capsule opacification were measured using the Scheimpflug anterior segment analysis system (Nidek EAS-1000). Visual acuity and contrast sensitivity were examined. Measurements were performed by masked examiners before and 1 day, 1 week, 1, 3, 6, and 18 months after surgery.
  
  
  RESULTS
  There were no significant differences between the two groups (p>0.05, paired t test) in the amount of IOL decentration, IOL tilt, area of anterior capsule opening, degree of posterior capsule opacification, best corrected visual acuity, and contrast sensitivity throughout the 18 month follow up period.
  
  
  CONCLUSIONS
  The single and three piece acrylic foldable IOLs are equally stable in the eye after surgery.
authors.affiliation: Miyata Eye Hospital, Miyazaki, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Nejima
authors.forename: K
authors.initials: K
authors.lastname: Miyata
authors.forename: M
authors.initials: M
authors.lastname: Honbou
authors.forename: T
authors.initials: T
authors.lastname: Tokunaga
authors.forename: T
authors.initials: T
authors.lastname: Tanabe
authors.forename: M
authors.initials: M
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Oshika
mesh_terms: D000180:Acrylic Resins; D000368:Aged; D002386:Cataract / Q000503:physiopathology; D002387:Cataract Extraction; D015350:Contrast Sensitivity; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007910:Lenses, Intraocular; D008297:Male; D011446:Prospective Studies; D014792:Visual Acuity
chemical_list: D000180:Acrylic Resins