title: Relationship between anterior capsule contraction and posterior capsule opacification after cataract surgery in patients with diabetes mellitus.
abstract: OBJECTIVE
  To prospectively assess the relationship between contraction of the anterior capsule opening and posterior capsule opacification (PCO) after cataract surgery in patients with diabetes mellitus.
  
  
  METHODS
  Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Kaiya Eye Clinic, Hamamatsu, and Department of Ophthalmology, Institute of Clinical Medicine, University of Tsukuba, Ibaragi, Japan.
  
  
  METHODS
  This study comprised 45 patients (45 eyes) with diabetes mellitus who had cataract surgery. In all eyes, the anterior capsule opening area and degree of PCO were determined by diaphanoscopy using an anterior eye segment analysis system (EAS-100, Nidek, Inc.) 1 day and 1 year postoperatively.
  
  
  RESULTS
  There was no correlation between the size of the anterior capsule opening area 1 day after surgery and the degree of PCO 1 year after surgery (Pearson correlation coefficient [r] = 0.041; P =.79). The percentage reduction in the anterior capsule opening area from 1 day to 1 year after surgery did not correlate with the degree of PCO 1 year after surgery (r = -0.08; P =.60).
  
  
  CONCLUSIONS
  Contraction of the anterior capsule opening and PCO after cataract surgery cannot be explained by a common mechanism.
authors.affiliation: Department of Ophthalmology, University of Tokyo School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
authors.forename: Yoshie
authors.initials: Y
authors.lastname: Hayashi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kato
authors.forename: Harumi
authors.initials: H
authors.lastname: Fukushima
authors.forename: Jiro
authors.initials: J
authors.lastname: Numaga
authors.forename: Tadayoshi
authors.initials: T
authors.lastname: Kaiya
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Tamaki
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Oshika
mesh_terms: D000368:Aged; D002386:Cataract / Q000503:physiopathology*; D003286:Contracture / Q000503:physiopathology*; D003920:Diabetes Mellitus / Q000503:physiopathology*; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000503:physiopathology*; D018918:Phacoemulsification; D011183:Postoperative Complications; D011446:Prospective Studies