title: Comparison of the actual amount of axial movement of 3 aspheric intraocular lenses using anterior segment optical coherence tomography.
abstract: OBJECTIVE
  To compare the mean effective lens position (ELP) and actual amount of axial movement of 3 aspheric intraocular lenses (IOLs) using anterior segment optical coherence tomography (AS-OCT).
  
  
  METHODS
  Department of Ophthalmology, Korea University College of Medicine, Seoul, South Korea.
  
  
  METHODS
  Retrospective comparative study.
  
  
  METHODS
  Consecutive patients had phacoemulsification with aspheric IOL implantation. The ELP measurements by AS-OCT were taken 1 week and 1, 3, and 6 months postoperatively. The ELPRMS was defined as the root mean square (RMS) of the change in ELP at each follow-up timepoint.
  
  
  RESULTS
  An XL Stabi ZO 3-plate IOL was implanted in 30 eyes, an Acrysof IQ C-loop IOL in 22 eyes, and an Akreos MI-60 4-plate IOL in 17 eyes. The 4-plate IOL showed significant changes in the mean ELP from 1 week to 1 month and from 3 to 6 months postoperatively (P=.005 and P=.028, respectively). The changes of the other 2 IOLs were insignificant during the 3 postoperative visits. However, the mean ELPRMS of the C-loop IOL (0.06 mm ± 0.31 [SD]) was smaller than that of the 3-plate IOL (0.14 ± 0.28 mm) and the 4-plate IOL (0.20 ± 0.35 mm) (P=.014 and P=.023, respectively) during the 3 timepoints.
  
  
  CONCLUSIONS
  An appropriate method based on the actual amount of axial IOL movement, such as the ELPRMS, is needed to assess the axial positional stability of IOLs.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors: From the Department of Ophthalmology, Korea University College of Medicine, Seoul, South Korea.
authors: Youngsub
authors: Y
authors: Eom
authors: Su-Yeon
authors: SY
authors: Kang
authors: Jong-Suk
authors: JS
authors: Song
authors: Hyo Myung
authors: HM
authors: Kim
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000869:Anterior Eye Segment / Q000473:pathology*; D060437:Artificial Lens Implant Migration / Q000175:diagnosis*; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D012189:Retrospective Studies; D041623:Tomography, Optical Coherence