title: Evaluation of foldable intraocular lenses in patients with uveitis.
abstract: OBJECTIVE
  To evaluate various foldable posterior chamber intraocular lenses (IOLs) after phacoemulsification in patients with uveitis.
  
  
  METHODS
  A prospective, noncomparative, interventional case series.
  
  
  METHODS
  Forty-nine consecutive patients (60 eyes) with various types of uveitis (anterior, n = 20; posterior, n = 1; panuveitis, n = 37, intermediate, n = 2).
  
  
  METHODS
  All patients underwent phacoemulsification with foldable posterior chamber IOL implantation. All eyes were free of active inflammation at the time of surgery. A variety of IOL biomaterials were implanted: acrylic (n = 30), silicone (n = 17), and hydrogel (n = 13).
  
  
  METHODS
  Detailed examination was performed by one masked observer. Several parameters were compared for each implant biomaterial, including level of best corrected Snellen visual acuity at final follow-up, presence of posterior synechiae, anterior capsular phimosis, posterior capsule opacification, and the degree of cellular deposits on the IOL optic.
  
  
  RESULTS
  There were 26 males and 23 females, aged 9 to 83 years (mean, 48 years). Follow-up ranged from 1 to 33 months (mean, 17.03 months). At final follow-up, 56 eyes (93.3%) had an improvement in visual acuity compared with preoperative levels as follows: 34 eyes (56.6%) achieved an improvement of four or more Snellen lines, and 44 eyes (73.3%) achieved 20/30 or better. Giant cells, observed on the IOL optic in 19 eyes (31.7%), were most often seen on the acrylic biomaterial at the 1-month follow-up, although this was not found to be statistically significant. Scratch marks produced by the lens-introducing forceps were seen in 24 eyes (40.0%), mainly on the acrylic and hydrogel optics. Posterior capsule opacification (PCO) occurred in 49 eyes (81.7%), with only 5 eyes requiring laser capsulotomy. There was no association between PCO and the various lens biomaterials. Other causes for reduced visual acuity included glaucomatous optic neuropathy (n = 5) and cystoid macular edema (n = 8).
  
  
  CONCLUSIONS
  The use of foldable IOLs in eyes with uveitis is safe, but the optimal biomaterial has yet to be found.
authors.affiliation: Division of Immunity and Infection, University of Birmingham, England.
authors.forename: S
authors.initials: S
authors.lastname: Rauz
authors.forename: P
authors.initials: P
authors.lastname: Stavrou
authors.forename: P I
authors.initials: PI
authors.lastname: Murray
mesh_terms: D000180:Acrylic Resins; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001672:Biocompatible Materials; D002386:Cataract / Q000209:etiology* / Q000473:pathology; D002648:Child; D005260:Female; D019466:Glare; D006801:Humans; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D007903:Lens Capsule, Crystalline / Q000473:pathology / Q000601:surgery; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011446:Prospective Studies; D012826:Silicone Elastomers; D014605:Uveitis / Q000150:complications*; D014792:Visual Acuity
chemical_list: D000180:Acrylic Resins; D001672:Biocompatible Materials; D012826:Silicone Elastomers; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate