title: Prevention of posterior capsule opacification using capsular tension ring for zonular defects in cataract surgery.
abstract: OBJECTIVE
  To evaluate the incidence of secondary cataract in phacoemulsification and intraocular lens implantation using a capsular tension ring in case of zonular dehiscence.
  
  
  METHODS
  Phacoemulsification using a double capsular tension ring and intraocular lens implantation was done in 65 eyes with cataract and severe zonular weakness. One year after surgery capsular opacities and fibrosis were detected in a double-blind examination. The results were compared with a control group of 36 eyes that did not have a capsular tension ring but had similar surgery.
  
  
  RESULTS
  In the group with the capsular tension ring and implantation 7.7% of patients had moderate or severe posterior capsule opacification, compared with 36.1% in the control group.
  
  
  CONCLUSIONS
  Capsular tension rings may influence the formation of capsule opacification.
authors.affiliation: Ophthalmic Operating Unit, Lugo Hospital, Ravenna, Italy.
authors.forename: D
authors.initials: D
authors.lastname: D'Eliseo
authors.forename: B
authors.initials: B
authors.lastname: Pastena
authors.forename: L
authors.initials: L
authors.lastname: Longanesi
authors.forename: F
authors.initials: F
authors.lastname: Grisanti
authors.forename: V
authors.initials: V
authors.lastname: Negrini
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000209:etiology / Q000517:prevention & control*; D004311:Double-Blind Method; D005260:Female; D005355:Fibrosis; D006801:Humans; D015994:Incidence; D007903:Lens Capsule, Crystalline / Q000473:pathology / Q000601:surgery*; D019654:Lens Implantation, Intraocular / Q000379:methods*; D008022:Ligaments / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification / Q000009:adverse effects*; D011183:Postoperative Complications / Q000517:prevention & control; D019736:Prostheses and Implants; D014792:Visual Acuity