title: Area densitometry using rotating Scheimpflug photography for posterior capsule opacification and surface light scattering analyses.
abstract: OBJECTIVE
  To compare area densitometry analysis using rotating Scheimpflug photography in quantifications of posterior capsule opacification (PCO) and surface light scattering with previous anterior-segment analyzer measurement.
  
  
  METHODS
  Miyata Eye Hospital, Miyazaki, Japan.
  
  
  METHODS
  Prospective observational case series.
  
  
  METHODS
  Scheimpflug images of eyes with foldable intraocular lenses (IOLs) were obtained using rotating and fixed Scheimpflug photography. Area densitometry on the posterior and anterior surfaces was conducted for PCO and surface light scattering analyses, respectively, with an identical area size. Correlation between two measurements was analyzed using linear regression.
  
  
  RESULTS
  The study included 105 eyes of 74 patients who received IOLs 1 to 18 years (mean, 4.9 ± 4.5 years) postoperatively. In the PCO analysis on the posterior IOL surface, there was a significant correlation between the two measurements (P < .001, R(2) = 0.60). In the surface light scattering analysis, a significant and higher correlation was obtained (P < .001, R(2) = 0.91) until the fixed Scheimpflug photography exhibited saturation due to intensive scatterings.
  
  
  CONCLUSIONS
  Area densitometry combined with a rotating Scheimpflug photography was exchangeable to previously established densitometry measurement, and allowed successive evaluation in longer-term observations.
authors.affiliation: Miyata Eye Hospital, Miyazaki, Japan. Electronic address: minami@miyata-med.ne.jp.
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Minami
authors.affiliation: Miyata Eye Hospital, Miyazaki, Japan.
authors.forename: Masato
authors.initials: M
authors.lastname: Honbo
authors.affiliation: Miyata Eye Hospital, Miyazaki, Japan.
authors.forename: Yosai
authors.initials: Y
authors.lastname: Mori
authors.affiliation: Miyata Eye Hospital, Miyazaki, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Kataoka
authors.affiliation: Miyata Eye Hospital, Miyazaki, Japan.
authors.forename: Kazunori
authors.initials: K
authors.lastname: Miyata
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D058442:Capsule Opacification / Q000175:diagnosis*; D003720:Densitometry / Q000379:methods*; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D008027:Light; D008297:Male; D018918:Phacoemulsification; D010781:Photography / Q000295:instrumentation*; D057852:Posterior Capsule of the Lens / Q000473:pathology*; D011446:Prospective Studies; D012542:Scattering, Radiation