title: Spontaneous luxation of encapsulated intraocular lens onto the retina after a triple procedure of vitrectomy, phacoemulsification, and intraocular lens implantation.
abstract: OBJECTIVE
  To report the clinical and histological findings of a luxated intraocular lens (IOL) in the capsular bag.
  
  
  METHODS
  Review of a case.
  
  
  RESULTS
  Twenty-three months after a triple procedure of vitrectomy, phacoemulsification, and IOL implantation for diabetic vitreous hemorrhage and cataract, the encapsulated IOL spontaneously luxated. Scanning electron microscopy showed sparsely distributed anterior and equatorial zonules, with only a few posterior zonules on the surface of the removed capusular bag.
  
  
  CONCLUSIONS
  The absence of the anterior hyaloid membrane and posterior zonules and contraction of the lens capsule may cause dialysis of the zonules. Therefore, the anterior hyaloid membrane should be left in place in patients at low risk for the development of postoperative proliferation to maintain the long-term stability of the IOL.
authors: Department of Ophthalmology, St. Luke's International Hospital, Tokyo, Japan. akiyasu@luke.or.jp
authors: A
authors: A
authors: Yasuda
authors: K
authors: K
authors: Ohkoshi
authors: Y
authors: Y
authors: Orihara
authors: Y
authors: Y
authors: Kusano
authors: A
authors: A
authors: Sakuma
authors: T
authors: T
authors: Yamaguchi
mesh_terms: D000368:Aged; D002386:Cataract / Q000150:complications / Q000628:therapy; D005548:Foreign-Body Migration / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000648:ultrastructure; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008022:Ligaments / Q000648:ultrastructure; D008297:Male; D008855:Microscopy, Electron, Scanning; D018918:Phacoemulsification; D011475:Prosthesis Failure; D014821:Vitrectomy; D014823:Vitreous Hemorrhage / Q000150:complications / Q000601:surgery